Theodore (given name)

Theodore is a masculine given name. It comes from the Ancient Greek name Θεόδωρος (Theódoros), meaning "gift of God" (from the Ancient Greek words θεό, (theó) "God" and δῶρον (dṓron) "gift"). The name was borne by several figures in ancient Greece, such as Theodorus of Samos and Theodorus of Byzantium.

The name has risen in popularity across the Anglosphere during the 2010s and 2020s. The character Ted Mosby on the popular American sitcom How I Met Your Mother, which aired from 2005 to 2014, might have influenced increased usage of the name. Modern parents more often use the diminutive Theo than Ted. Theodore was among the five most popular names for White newborn boys in the American state of Virginia in 2022. It has been among the ten most popular names for newborn boys nationally in the United States since 2021. It has been a similarly popular name for boys in Canada. The feminine form of Theodore is Theodora. In German, Theodore is the feminine form of Theodor.

Although similar to, and probably influenced by, the Germanic name Theodoric (and variants Theodoricus, Dietrich, Thierry, and others) have separate origins. It's also similar to Doris, another Greek origin given name. [citation needed]

Variants

Language	Variant(s)	Notes
Albanian	Teodor, Theodhor, Dhori
Amharic	Tewodros (ቴዎድሮስ)
Arabic	Tawadros (تواضروس)
Hibatullah	Similar in translation to the Greek name
Aramaic	Yahballaha (ܝܗܒܐܠܗܐ‎)
Armenian	Thoros (Թորոս)
Astvacatur (Աստուածատուր), Asatur (Ասատուր)	Translation of Greek original
Belarusian	Fiodar (Фёдар), Todar (Тодар), Teador (Тэадор)
Bahdan (Багдан)	Translation of Greek original
Bulgarian	Todor (Тодор), Teodor (Теодор)
Božidar (Божидар), Bogdan (Богдан)	Translation of Greek original
Catalan	Teodor
Czech	Teodor, Theodor
Bohdan	Translation of Greek original
Danish	Teodor, Theodor
Dutch	Theodoor, Theodorus
English	Theodore
Esperanto	Teodoro
Estonian	Theodor, Teodor, Tuudor, Tuudur
Ethiopian and Eritrean	Tedros (ቴድሮስ), Tewodros (ቴዎድሮስ)
Finnish	Teuvo, Teodor
French	Théodore
Dieudonné	Translation of Greek original
Georgian	Teodor (თევდორე)
German	Theodor
Greek	Theódoros (Θεόδωρος), Thódoros (Θόδωρος), Thodorís (Θοδωρής), Theodorákis (Θεοδωράκης), Theodósios (Θεοδόσιος, Theodosius), Thódos (Θώδος), Thódis (Θώδης), Dóros (Δώρος), Dóris (Δώρης), Theodhori (Θεοδορι)
Hebrew	Teodor (תאודור), Tiodor (תיאודור)
Hungarian	Tivadar, Tódor
Indonesian	Theodore, Theodorus, Teodorus, Teodor, Tio
Irish	Téadóir
Italian	Teodoro, Donato, Donatello
Kazakh	Shodyr (Шодыр)
Kudaibergen, Kūdaiberdi, Täñirbergen, Täñirberdi	Similar in translation to the Greek name
Latin	Theodorus
Latvian	Teodors
Lithuanian	Teodoras
Macedonia	Теодор, Тео
Norwegian	Teodor, Theodor
Polish	Teodor, Bożydar, Bogdan, Bohdan
Portuguese	Teodoro, Deodoro
Romanian	Tudor (also a surname)
Teodor
Bogdan	From Slavic languages
Russian	Fyodor (Фёдор), Fedor (Федор), Feodor (Феодор)
Bogdan (Богдан).	Translation of Greek original
Scottish Gaelic	Feadair
Serbo-Croatian	Teodor (Теодор), Todor (Тодор)
Božidar (Божидар), Bogdan (Богдан)	Translation of Greek original
Sicilian	Teodoru
Slovene	Teodor
Sanskrit	Devadatta (देवदत्त)	From Indic languages
Spanish	Teodoro
Diosdado
Swedish	Teodor, Theodor
Turkish	Tevazirus	From Arabic form
Ukrainian	Fedir (Федір), Fedor (Федор), Teodor (Теодор), Khvedir (Хведір), Fedio (Федьо)
Bohdan (Богдан), Bohodar (Богодар)	Translation of Greek original
Welsh	Tewdwr

Diminutives

Hypocorisms, calling names, or nicknames derived from Theodore can be:

Language	Form	Nickname(s)
Bulgarian	Božidar	Božo (Божо)
Teodor	Teodor (Теодор): Teo (Тео), Teddy (Теди)
Todor	Tosh(k)o (Тош(к)о)
Danish	T(h)eodor	Teo and Theo
Dutch	Theodoor, Theodorus	Dorus, Theo
English	Theodore	Ted, Teddy, Theo
Finnish	Teodor, Teuvu	Teo
French	Dieudonné, Théodore	Théo
German	Theodor	Theo
Georgian	Teodor	Tedo (თედო)
Greek	ákis (άκης)	Dhóros (Δώρος)
Italian	Teodoro	Teo
Norwegian	T(h)eodor	Teo and Theo
Russian	Feodor, Fodor, Fyodor	Fedya (Федя)
Ukrainian	Bogdan	Bodya (Бодя)
Swedish	T(h)eodor	Teo, Theo and Teddy

People named Theodore

Ancient world

Ordered chronologically

Theodore Tiron (died 306), Byzantine martyr and Warrior Saint
Theodore Stratelates (died 319), Byzantine martyr and Warrior Saint
Theodore of Mopsuestia (c. 350 – 428), Byzantine bishop
Theodore of Enaton, 5th-century Syrian Christian monk
Theodore of Pherme, 4th-century Egyptian Christian monk
Theodore of Tarsus (602–690), Archbishop of Canterbury
Theodore (brother of Heraclius) (fl.c. 610–636), Byzantine general
Theodore (prefect of Egypt) (fl.c. 640), Byzantine general
Theodore Trithyrius (died 636), Byzantine treasurer and military commander
Pope Theodore I, Pope from 642 to 649
Theodore I Calliopas, Exarch of Ravenna (643 – c. 645 and 653 – before 666)
Theodore Abu Qurrah (c. 750 – c. 823), Christian Arab theologian
Theodore the Studite (759–826), Byzantine Greek monk and abbot
Pope Theodore II (840–897), Pope in 897
Theodore Gabras, 11th-century Byzantine military leader and martyr
Theodore Prodromos (c. 1100 – c. 1165), Byzantine writer and poet
Theodore Balsamon, 12th-century Eastern Orthodox Patriarch of Antioch
Theodore I Laskaris (c. 1174 – c. 1222), first Emperor of Nicaea
Theodore Komnenos Doukas (died c. 1253), Emperor of Thessalonica
Theodore II Laskaris (c. 1222 – 1258), Emperor of Nicaea
Theodore Metochites (1270–1332), Byzantine statesman, author and philosopher
Theodore Svetoslav of Bulgaria, Tsar of Bulgaria from 1300 to 1322
Theodore I Palaiologos (c. 1355 – 1407), Byzantine despot
Theodore Kantakouzenos (died 1410), Byzantine nobleman
Theodore II Palaiologos (c. 1396 – 1448), Byzantine despot

Modern world

Ordered by last name, where available; otherwise chronologically

Theodore I of Corsica (1694–1756), German adventurer who was briefly King of Corsica
Pope Theodoros II of Alexandria (born 1952), leader of the Coptic Orthodox Church of Alexandria
Patriarch Theodore II of Alexandria (born 1954), Eastern Orthodox Patriarch of Alexandria and all Africa
Theodore Fred Abel (1896–1988), American sociology professor
Theodore Abrahamson (1900–1978), member of the Wisconsin State Assembly
Theodore C. Achilles (1905–1986), American diplomat
Theodore Kwami Adzoe, Ghanaian Supreme Court Judge
Theodore Agnew (born 1961), British businessman, Baron Agnew of Oulton, life peer, and Minister of State
Ted Ainley (1903–1968), British trade union leader and communist activist
Theodore Albrecht (born 1945), American music historian
Theodore C. Almquist (1941–2010), United States Air Force general
Theodore Anderson (1878–1926), Australian cricketer
Theodore Wilbur Anderson (1918–2016), American mathematician and statistician
Theodore Angelopoulos (born 1943), Greek shipping and steel magnate
Theodore Annemann (1907–1942), American professional magician
Theodore Antoniou (1935–2018), Greek composer and conductor
Theodore Basil Anuka, Ghanaian politician
Theodore Aplin (c. 1927–1991), Australian botanist
T. Frank Appleby (1864–1924), American Republican Party politician
Theodore Apsevdis, 13th-century Greek painter
Theodore Aranda (1934–2022), Belizean politician
Theodore Argles, American journalist
Theodore Atkinson (1697–1779), American politician, lawyer and militia officer
Theodore Aylward Sr., English organist
Theodore Bachenheimer (1923–1944), United States Army officer
Theodore F. Bagge (1820–1886), American politician
Theodore Baker (1851–1934), American musicologist
Theodore Anderson Baldwin (1839–1925), United States Army general
Theodore Cotillo Barbarossa (1906–1992), American sculptor
Theodore X. Barber (1927–2005), American hypnosis expert
Theodore H. Barrett (1834–1900), American Brevet Brigadier General
Theodore Ward Barrow, American art historian and skateboarder
S. Theodore Baskaran, Indian film historian
Theodore Baskin (born 1950), American musician
Theodore Bathurst, English poet and translator
Theodore Bauer, West German bobsledder
Theodore J. Bauer (1909–2005), American physician
Theodore Beauchaine, American psychologist
Theodore Beck (1859–1899), British academic
Theodore Beggs (1859–1940), Australian politician
Theodore Arlington Bell (1872–1922), American politician
Theodore Bendix (1862–1935), American composer and musical director
Theodore Hutson Benedict (1821–1885), American politician
Theodore Benfey, American politician
Theodore Bent (1852–1897), British archaeologist and explorer in the Levant, Africa, and Southern Arabia
Theodore Berlin (1938–1987), American politician
Theodore H. Berlin (1917–1962), American theoretical physicist
Theodore Menline Bernstein (1904–1979), American newspaper editor
Theodore Besterman (1904–1976), Polish-born British researcher, bibliographer, biographer and translator
Theodore Bestor (1951–2021), American anthropologist
Theodore Beza (1519–1605), French Protestant theologian and scholar
Theodore Bibb (1918–2010), American jazz drummer
Theodore Bibliander (1509–1564), Swiss Orientalist, publisher and linguist
Theodore Bikel (1924–2015), Austrian-American actor, folksinger, composer and unionist
Theodore G. Bilbo (1877–1947), American politician
Theodore A. Bingham (1858–1934), American police commissioner
Theodore Birkbeck, British Army general
Theodore Birkett (1918–?), Barbadian cricketer
Theodore H. Blau (1928–2003), American psychologist
Theodore Bloomfield (1923–1998), American conductor
Theodore Davis Boal (1867–1938), American architect and army officer
Theodore Boborol (born 1979), Filipino film and television director
Theodore Bodenwein, German-American newspaper publisher and politician
Theodore Bodra (1917–?), Indian politician
Theodore Boronovskis (born 1943), Australian Olympic judoka
Theodore Boyett (1912–1987), American football coach
Theodore Brameld (1904–1987), American philosopher
Theodore Brandley (1851–1928), Swiss Mormon missionary
Theodore M. Brantley (1851–1922), American judge
Theodore DuBose Bratton (1862–1944), American bishop
Theodore W. Brazeau (1873–1965), American politician
Theodore Brenson (1893–1959), American artist
Theodore Brentano (1854–1940), American judge
Theodore W. Brevard Jr. (1835–1882), American politician and Confederate Army officer
Teddy Bridgewater (born 1992), American football player
Theodore J. van den Broek (1783–1851), Dutch missionary
Theodore F. Brophy (1923–2020), American businessman and telecommunications professional
Theodore Bruback (1851–1904), American businessman
Theodore Bruce (1847–1911), Australian politician
Theodore Brune, German-American architect
Theodore Alois Buckley (1825–1856), English classicist and translator
Theodore Bugas (1924–2022), American politician
Theodore Holmes Bullock (1915–2005), American neuroscientist
Theodore Bundy (1946–1989), prolific American serial killer, rapist, kidnapper, and necrophile
Theodore Weld Burdick (1836–1898), American politician
Theodore Burr (1771–1822), American inventor and civil engineer
Theodore Arthur Burrows (1857–1929), Canadian politician
Theodore Earl Butler (1861–1936), American painter
Theodore V. Buttrey Jr. (1929–2018), American educator, classicist and numismatist
Theodore Cable, Indianapolis politician
Theodore L. Cairns (1914–1994), American chemist
Theodore Cantor (1809–1860), Danish physician, zoologist and botanist
Theodore Carpenter (1898–1975), American jazz musician and bandleader
Theodore Carr (1866–1931), British politician
Theodore Carstens (1879–1955), American fencer
Theodore Case (1888–1944), American chemist and inventor
Theodore S. Case (1832–1900), American businessman, military officer, professor and physician
Theodore E. Chandler (1894–1945), United States Navy admiral
Theodore Chanler (1902–1961), American composer
Theodore S. Chapman (1849–1914), American politician, lawyer and businessman
Theodore William Chaundy (1889–1966), English mathematician
Theodore Seio Chihara (born 1929), American mathematician
Theodore Christianson (1883–1948), American politician
Theodore Christianson (judge) (1913–1955), American judge
Theodore Christman, American composer
Theodore D. Chuang (born 1969), American judge
Theodore Clapp (1792–1866), American minister
Theodore Clarke (1860–?), Barbadian cricketer
Theodore S. Clerk (1909–1965), Ghanaian architect and urban planner
Theodore S. Coberly (1921–2011), United States Air Force general
Theodore D. A. Cockerell (1866–1948), American entomologist
Theodore Cogswell (1918–1987), American writer
Theodore Colbert III (born 1973), American businessman and engineer
Theodore B. Comstock (1849–1915), American geologist
Theodore Edward Coneys (1882–1967), American murderer
Theodore Conkey (1819–1880), American pioneer and politician
Theodore Conover (1868–1910), American baseball player
Theodore Conrad (1910–1994), American architect, preservationist and a leading architectural model maker
Theodore John Conrad (1949–2021), American fugitive
Theodore Conrath (1920–1995), American painter and sculptor
Theodore J. Conway (1909–1990), United States Army four-star general
Theodore Cooper (1839–1919), American civil engineer
Theodore Bayard Fletcher Copp (1902–1945), American author
Theodore James Courant, American mathematician
Theodore F. Craver Jr., American business executive
Theodore Criley (1880–1930), American painter
Theodore G. Croft (1874–1920), American politician
Theodore Cross (1924–2010), American lawyer
Theodore E. Cummings (1907–1982), Austrian-born American diplomat
Theodore Curphey (1897–1986), American coroner
Ted Curson (1935–2012), American jazz trumpeter
Theodore Curtis, American politician
Theodore Czebotar (1915–1996), American painter
Theodore Dakpogan, Beninese artist
Theodore Dalrymple (born 1949), English cultural critic and author
Theodore Dammann, American politician
Theodore Davie (1852–1898), Canadian politician
Theodore D. Day (1917–2003), American farmer and politician
Theodore Low De Vinne (1828–1914), American printer and typographer
Theodore Debs (1864–1945), American politician
Theodore Dehon (1776–1817), American bishop
Theodore C. Delaplane (died 1900), American politician
Theodore Delevoryas (1929–2017), American paleobotanist
Theodore Dieckmann (1853–1919), American politician and businessman
Theodore C. Diers (1880–1942), American actor, politician, and writer
Theodore Dikanda (born 1966), Swedish wrestler
Theodore John Dimitry Jr. (1879–1945), Louisiana Creole physician and professor
Theodore Ayrault Dodge (1842–1909), United States Army officer and author
Theodore Dollarhide (1948–2014), American composer, conductor and music educator
Theodore Doxford (1841–1916), British politician
Theodore S. Drachman (1904–1988), American novelist
Theodore W. Drake (1907–2000), American cartoonist
Theodore Drange (born 1934), American philosopher
Theodore Draper (1912–2006), American historian, social activist and writer
Theodore Dreiser (1871–1945), American novelist
Theodore Dunham Jr. (1897–1984), American astronomer and physicist
Theodore Durrant (c. 1871–1898), American murderer
Theodore Dury (1854–1932), English cricketer
Theodore Miller Edison (1898–1992), American inventor
Theodore L. Eliot Jr. (1928–2019), American diplomat
Theodore G. Ellyson (1885–1928), first United States Navy officer designated as an aviator
Theodore von Eltz (1893–1964), American actor
Theodore N. Ely (1846–1916), American railroad executive
Theodore Engel (1866–1935), American politician
Theodore Enslin (1925–2011), American poet
Theodore Epp (1907–1985), American pastor and radio broadcaster
Theodore Eustace, Count Palatine of Sulzbach (1659–1732)
Theodore Tracy Fairchild (1865–1950), American politician
Theodore A. Farwell (1931–2015), American Nordic combined skier
Theodore Fawcett (1832–1898), Australian politician
Theodore Sedgwick Fay (1807–1898), American diplomat
T. R. Fehrenbach (1925–2013), American historian
Theodore Pollock Ferguson (1853–1920), American minister
Theodore B. Fernald, American linguist
Theodore E. Ferris (1872–1953), American naval architect
Theodore Henry Adolphus Fielding (1781–1851), English painter
Theodore Fink (1855–1942), Australian politician
Theodore J. Flicker (1930–2014), American dramatist
Theodore Thomson Flynn (1883–1968), Australian zoologist
Theodore Foley (1913–1974), Roman Catholic priest
Theodore Fontaine (1941–2021), Canadian community leader and author
Theodore J. Forstmann (1940–2011), American private equity investor
Theodore Foster (1752–1828), American politician
Theodore Fowler (1879–1915), English cricketer
Theodore Fortescue Fox (1899–1989), British physician and medical editor
Theodore Frankel (1929–2017), American mathematician
Theodore Freeman (1930–1964), American aeronautical engineer, test pilot and NASA astronaut
Theodore Frelinghuysen (1787–1862), American politician
Theodore Fried (1902–1980), Hungarian artist
Theodore Friedman (1908–1992), American conservative rabbi
Theodore Friedmann, American researcher
Theodore Friend (1931–2020), American historian and novelist
Theodore Fritz (1851–1922), American politician
Theodore C. Froemming (1873–1929), American politician
Theodore Fry (1836–1912), English politician
Theodore I. Fry (1881–1962), Michigan politician
Theodore Leslie Futch (1895–1992), United States Army general
Theodore Fyfe (1875–1945), Scottish architect
Theodore Galante (born 1963), American architect
Theodore Gamelin, American mathematician
Theodore Yale Gardner (1841–1900), Reverend and first pastor of Glenville, Cleveland
Theodore G. Garfield (1894–1989), American judge
Theodore Garland Jr. (born 1956), American biologist
Theodore Garman (1924–1954), English painter
Theodore J. Garrish (born 1943), American government official
Theodore Gass, Florida state legislator
Theodore H. Geballe (1920–2021), American physicist
Theodore Thurston Geer (1851–1924), 10th Governor of Oregon
Theodore Gegoux (1850–1931), Canadian artist
Theodore George, American philosopher
Théodore Géricault (1791–1824), French Romantic painter
Theodore E. Gildred (1935–2019), American businessman and diplomat
Theodore Gill (1837–1914), American zoologist and librarian
Theodore Gilman (1841–1930), American banker and reform advocate
Theodore L. Glasser, American academic
Theodore Gleason (1904–1975), American politician
Theodore Gleim (born 1933), Canadian politician
Theodore A. Glynn (1881–1950), American politician
Theodore Sedgwick Gold (1818–1906), American farmer and schoolteacher
Theodore W. Goldin (1858–1935), United States Army Medal of Honor recipient
Theodore Roy Golubic (1928–1998), American artist
Theodore Goodson III (born 1969), American chemist
Theodore Gordon (1786–1845), Scottish inspector of army hospitals
Theodore Goulston (c. 1572–1632), English physician
Theodore Gourdin (1764–1826), American politician
Theodore Gray (born 1964), American science author
Theodore Green (1925–1999), Australian race horse trainer and jockey mentor
Theodore F. Green (1867–1966), American politician
Theodore Gregory (1890–1970), British economist
Theodore W. Greig (1843–1893), American Civil War Medal of Honor recipient
Theodore Gross (1880–1951), American gymnast
Theodore Haak, German scholar
Theodore Hack (1840–1902), Australian politician
Theodore Hall (1925–1999), American physicist and atomic spy for the Soviet Union
Theodore N. Haller (1864–1930), American lawyer
Theodore Hallett (1878–1956), Royal Navy Vice Admiral
Theodore Hamberg (1819–1854), Swedish missionary
Theodore Hamm (1825–1903), American brewery executive
Theodore E. Hancock (1847–1916), American lawyer
Theodore Hancock (1923–1989), American artist
Theodore Hantke (1875–1931), Australian cricketer
Theodore Hardeen (1876–1945), Hungarian-American entertainer
Theodore Harden, Australian politician
Theodore Hardy (1863–1918), British military chaplain
Theodore Harrison (1876–1965), American opera singer
Theodore Hart (1816–1887), Canadian businessman
Theodore Haultain (1817–1902), New Zealand politician and botanist
Theodore Hauman (1808–1878), Belgian violinist and teacher
Theodore Havemeyer (1839–1897), American businessman
Theodore Hesburgh (1917–2015), 15th President of the University of Notre Dame
Theodore Heuck (1830–1877), American architect
Theodore Hinsdale, American politician
Theodore H. Hittell (1830–1917), historian, state senator, and writer
Theodore Holland (1878–1947), British composer and academic
Theodore Holstein (1915–1985), American theoretical physicist
Theodore Holtebeck (1883–1963), American politician and businessman
Theodore Hook, English intellectual and composer
Theodore Hope (lawyer) (1903–1998), American lawyer
Theodore Hope (1831–1915), British-born civil servant in the government of India
Theodore Hoskins (born 1938), American politician
Theodore Hough (1865–1924), American physiologist
Theodore van Houten (1962–2016), Dutch program maker, writer and journalist
Theodore Hoyle (1884–1953), English cricketer
Theodore Hubback (1872–1942), English cricketer, conservationist and author
Theodore Hukriede (1878–1945), American politician
Theodore L. Hullar (born 1935), American university chancellor
Theodore G. Hunt (1805–1893), American politician
Theodore A. Hurd (1819–1899), American judge
Theodore Hyatt (1830–1900), American Civil War Medal of Honor recipient
Theodore Illion (1898–1984), Canadian travel book writer
Theodore Isley (1912–2004), Canadian politician
Theodore Henley Jack (1881–1964), American college president
Theodore Jacobsen (c. 1724–1772), English merchant and architect
Theodore Janssen, French-born English financier and member of parliament
Theodore Jantjies (born 1983), South African actor
Theodore Jasper (1814–1897), American painter
T. J. Jemison (1918–2013), American clergyman and civil rights activist
Theodore G. Jenes Jr. (1930–2023), United States Army general
Theodore Frelinghuysen Jewell (1844–1932), rear admiral of the United States Navy
Theodore Joset (1804–1842), Swiss priest
Theodore Joslin (1890–1944), American politician
Theodore Judah (1826–1863), American businessman
Theodore Judson (born 1951), American writer
Theodore Jurewicz, American painter
Theodore Just (1886–1937), British middle-distance runner
Theodore Kaczynski (1942–2023), American letter bomber
Theodore Kaghan (1912–1989), American dramatist
Theodore Kanamine (1929–2023), American general officer
Theodore Kanavas (1961–2017), American politician
Theodore Kara (1916–1944), American boxer
Theodore Karamanski, American historian
Theodore von Kármán (1881–1963), Hungarian-American mathematician, aerospace engineer and physicist
Theodore Cyrus Karp (1926–2015), American musicologist
Theodore Kassinger (born 1953), American government official
Theodore Katsanevas (1947–2021), Greek academic and politician
Theodore H. Kattouf, American diplomat
Theodore N. Kaufman (1910–1986), American activist
Theodore Kaufmann (1814–1896), German-born American painter
Theodore Kavalliotis (1718–1789), Greek Orthodox priest, teacher and a figure of the Greek Enlightenment
Theodore Kazanov (born 1973), Metropolitan of the Russian Orthodox Church
Theodore Keep (1924–2007), American record producer
Theodore W. Kheel (1914–2010), American lawyer
Theodore Khoury (1930–2023), Lebanese Catholic theologian
Theodore "Ted" Nieman Kincannon (1896–1936), American aviator
T. C. Kingsmill Moore (1893–1979), Irish judge, politician and author
Theodore Kisiel (1930–2021), American philosopher
Theodore Kitching (1866–1930), English Salvationist
Theodore F. Kluttz (1848–1918), American politician
Theodore Knapstein (1848–1917), American politician
Theodore Knauth (1885–1962), investment banker, journalist and government official
T. R. Knight (born 1973), American actor
Theodore Wesley Koch (1871–1941), American librarian
Theodore Kodjo Agadzi (1919–2005), Ghanaian politician
Theodore Koehler (1856–1929), American politician
Theodoros Kolokotronis (1770–1843), Greek General and pre-eminent leader of the Greek War of Independence (1821–1829) against the Ottoman Empire.
Theodore Komisarjevsky (1882–1954), Russian-British theatrical director
Theodore I. Koskoff (1913–1989), American lawyer
Theodore Kosloff (1882–1956), Russian-American ballet dancer, choreographer and actor
Theodore L. Kramer (c. 1847–1910), American civil war soldier
Theodore Kremer (1871–1923), American dramatist
Theodore Kryzak (died 2022), American politician
Theodore Ku-DiPietro (born 2002), American soccer player
Theodore Kuchar (born 1963), American-Ukrainian conductor
Ted Kulongoski (born 1940), American judge and politician
Theodore Kuwana (1931–2022), Japanese American chemist
Theodore Kwasman, American Assyriologist
Theodore Kyriakou (born 1974), Greek businessman
Theodore de Laguna (1876–1930), American philosopher
Theodore Lambrinos (1935–2021), Greek-American operatic baritone
Theodore Lane (died 1828), English painter and engraver
Theodore Otto Langerfeldt (1841–1906), German-born American painter
Theodore K. Lawless (1892–1971), American dermatologist
Theodore Forbes Leith (1746–1819), Scottish physician
Theodore de Lemos (1850–1909), American architect
Theodore Lenzen (1833–1912), Prussian-American architect
Ted Leonsis (born 1957), American businessman
Theodore Lettvin (1926–2003), American pianist and conductor
Theodore Levin (1897–1970), American judge
Theodore Levin (ethnomusicologist), American ethnomusicologist
Theodore Levitt (1925–2006), American economist
Theodore Lidz (1910–2001), American psychiatrist
Theodore Lightner (1893–1981), American bridge player
Theodore Link (1850–1923), German-born American architect
Theodore Lipscomb, American politician
Theodore Litovitz (1923–2006), American physicist
Theodore Loblaw (1872–1933), American grocer
Theodore Lorber (1906–1989), American fencer
Theodore Lorch (1873–1947), American actor
Theodore K. Lorenz (1842–1909), German ornithologist
Theodore J. Lowi (1931–2017), political scientist
Theodore Lukens (1848–1918), American conservationist and civic leader
Theodore Lukits (1897–1992), American painter
Theodore Lumpkin (1919–2020), Tuskegee Airman and United States Air Force officer
Theodore C. Lyster (1875–1933), United States Army general
Theodore E. Madey (1937–2008), American surface scientist
Theodore Maiman (1927–2007), American engineer and physicist, inventor of the laser
Theodore Major (1908–1999), English artist
Theodore Makridi (1872–1940), Greek archaeologist
Theodore Mills Maltbie (1842–1915), American politician
Theodore Maly (1894–1938), former Roman Catholic priest and Soviet intelligence officer
Theodore Manaen (1922–2020), Indian politician
Theodore Augustine Mann (1735–1809), English naturalist, historian and Carthusian monk
Theodore D. Mann (1922–1994), American politician
Theodore Mann (1924–2012), American theatre producer and director
Theodore Marburg (1862–1946), American jurist and diplomat
Theodore Marier (1912–2001), American classical composer
Theodore Marshall, Scottish minister
Theodore Marston (1868–1920), American film director
Theodore D. Martin (born 1960), United States Army general
Theodore Martin (1816–1909), Scottish poet, biographer and translator
Theodore Mascarenhas, Indian prelate of the Catholic Church
Theodore Mavrogordato (1883–1941), British tennis player
Theodore Maxwell, 19th-century English doctor and missionary
Theodore Maynard (1890–1956), English poet literary critic and historian
Theodore Howard McCaleb (1810–1864), American judge
Theodore McCall (1911–1969), Australian Anglican bishop
Theodore McCarrick (1930–2025), defrocked American prelate, former Catholic cardinal and archbishop
Theodore H. McCrea (1908–1986), suffragan bishop
Theodore W. McFarling (1929–2024), American politician
Theodore McKee (born 1947), American judge
Theodore McKeldin (1900–1974), American politician
Theodore McLear (1879–1958), American wrestler
Theodore F. MacManus (c. 1872–1940), American businessman and philanthropist
Theodore McMillian (1919–2006), American judge
Theodore McNeal (1905–1982), American politician
Theodore Luqueer Mead (1852–1936), American naturalist and horticulturalist
Theodore Meighen (1905–1979), Canadian lawyer and philanthropist
Theodore Melfi (born 1970), American film director and producer
Theodore Mendez (1934–1997), English painter
Theodore W. Metcalfe (1894–1973), American politician
Theodore Metz (1848–1936), German-born American bandleader and composer
Theodore Doughty Miller (1835–1897), Baptist preacher
Theodore Miller (1816–1895), American judge
Theodore Millon (1928–2014), American psychologist
Theodore Augustus Mills (1839–1916), American sculptor
Theodore R. Milton (1915–2010), United States Air Force general
Theodore L. Minier (1819–1895), American politician
Theodore B. Mitchell (1890–1983), American entomologist
Theodore William Moody (1907–1984), Northern Irish historian
Theodore Mook (born 1953), American cellist
Theodore Barcroft L. Moonemalle, Ceylonese lawyer
Theodore Morde (1911–1954), American explorer, journalist and diplomat
Theodore Morison (1863–1936), British educationalist
Theodore L. Moritz (1892–1982), American politician
Theodore Morse (1873–1924), American songwriter
Theodore Motzkin (1908–1970), Israeli-American mathematician
Theodore Moustakas, materials physicist
Theodore T. Munger (1830–1910), American Congregational clergyman and writer
Theodore W. Myers (1844–1918), American banker and politician
Theodore "Fats" Navarro (1923–1950), American jazz trumpeter
Theodore Newcomb (1903–1984), American social psychologist
Ted Nierenberg (1923–2009), American business executive
Theodore van der Noot, 8th Marquess of Assche (1818–1889), Belgian courtier and aristocrat
Theodore W. Noyes (1858–1946), American journalist
Ted Nugent (born 1948), American rock musician and gun advocate
Theodore Odrach (1912–1964), Ukrainian (Belarusian) writer
Theodore Odza (1915–1998), American visual artist
Theodore H. Okiishi (born 1939), American mechanical engineer
T. V. Olsen (1932–1993), American author
Theodore Olson (1940–2024), American lawyer
Theodore Orji (born 1950), Nigerian politician
Theodore Osborn (1887–1973), British-born Australian botanist
Theodore Otis (1810–1873), American politician
Theodore J. Pahle (1899–1979), American cinematographer
Theodore Sherman Palmer (1868–1955), American zoologist
Theodore Braybrooke Panabokke (1909–1989), Sri Lankan Sinhala politician, lawyer, and diplomat
Theodore Paraskevakos (born 1937), Greek inventor and businessman
Theodore D. Parsons (1894–1978), American politician
Theodore S. Parvin, American lawyer
Theodore S. Peck (1843–1918), United States Army general and Medal of Honor recipient
Theodore Pell (1878–1967), American tennis player
Theodore Leighton Pennell (1867–1912), English missionary
Theodore Duncan Perera, Sri Lankan Sinhala civil servant
Theodore A. Peyser (1873–1937), American politician
T. E. R. Phillips (1868–1942), English astronomer
Theodore Pike (1904–1987), Irish colonial administrator and sports international
Theodore C. Pilcher (1844–1917), American politician
Theodore Plucknett (1897–1965), British legal historian
Theodore M. Pomeroy (1824–1905), American politician
Theodore L. Poole (1840–1900), American politician
Theodore Poulakis (1622–1692), Greek painter
T. F. Powys (1875–1953), British novelist and short-story writer
Theodore Pratt (1901–1969), American writer
Theodore Price (c. 1570–1631), Welsh Anglican clergyman and academic
Theodore Puck (1916–2005), American geneticist
Theodore K. Rabb (1937–2019), American historian
Ted Raimi (born 1965), American actor
Theodore F. Randolph (1826–1883), American politician
Theodore I. Reese (1873–1931), bishop of the Episcopal Diocese of Southern Ohio
Theodore Reff, American art historian
Theodore H. Reverman (1877–1941), American prelate
Theodore Rigg (1888–1972), New Zealand agricultural chemist and scientific administrator
Theodore M. Riley (1842–1914), American Anglo-Catholic priest, author, and seminary professor
Theodore Rinaldo (1944–2000), American charismatic religious leader and convicted child sex offender
Theodore A. Ripley (1835–1866), American general
Theodore Ritch (1894–1943), Russian tenor
Theodore J. Rivlin (1926–2006), American mathematician
Theodore Goodridge Roberts (1877–1953), Canadian novelist and poet
Theodore Roberts (1861–1928), American film and stage actor
Theodore Robinson (1852–1896), American Impressionist painter
Theodore Roe (1898–1952), American mob boss
Theodore Roethke (1908–1963), American poet
Theodore L. Rogers (1880–1940), American politician
Theodore Romzha (1911–1947), Ukrainian Ruthenian Catholic bishop
Theodore Roscoe (1906–1992), American writer
Theodore Rosengarten (born 1944), American historian
Theodore H. Rowell (1905–1979), American politician
Theodore Isaac Rubin (1923–2019), American psychiatrist and author
Theodore Rudzinski (1857–?), American politician
Theodore Runyon (1822–1896), American soldier, politician and diplomat
Theodore D. Saar (1918–1981), American politician
Theodore B. Sachs (1868–1916), American physician
Theodore J. St. Antoine (born 1929), American lawyer and legal scholar
Theodore St. John (1906–1956), American screenwriter
Theodore Saloutos (1910–1980), American historian
Theodore Salvesen (1863–1942), Scottish soldier and businessman
Ted Sampley (1946–2009), American POW/MIA activist
Theodore M. Sanders (1879–1947), American architect
Theodore R. Sarbin (1911–2005), American psychologist
Theodore S. Sayre (1837–1916), American businessman and politician
Theodore Schatzki, American philosopher
Theodore Schempp (1904–1988), American painter
Theodore Schick, American philosopher
Theodore Schroeder (1864–1953), American lawyer
Theodore Schultz (1902–1998), American economist
Theodore Schurch (1918–1946), British Nazi collaborator
Theodore H. Schwartz (born 1965), American medical scientist
Theodore Schwan (1841–1926), United States Army Medal of Honor recipient
Theodore Scott-Dabo (1877–1928), American painter
Theodore Scowden (1815–1881), American architect
Theodore C. Search (1841–1920), American businessman
Theodore L. Sendak (1918–1999), American attorney general
Theodore Shackley (1927–2002), American CIA officer
Theodore Shapiro (born 1971), American film composer
Theodore Shapiro (psychiatrist) (born 1932), American psychiatrist
T. Leslie Shear (1880–1945), American archaeologist
Theodore P. Shonts (1855–1919), American lawyer and industrialist
Theodore Shulman (born 1961), American abortion-rights activist
Theodore Sider, American philosopher
Theodore Silverstein (1904–2001), American medieval literature scholar
Theodore Frelinghuysen Singiser (1845–1907), American politician
Theodore Cressy Skeat (1907–2003), British academic and librarian
Theodore Slaman (born 1954), American mathematician
Theodore J. Smayda (1931–2017), American oceanographer
Theodore Solomons (1870–1947), American explorer
Theodore J. Sophocleus (1939–2018), American politician
Theodore Sorensen (1928–2010), American lawyer, writer, and presidential adviser
Theodore Sougiannis, American economist
Theodore Souris (1925–2002), American judge
Theodore Southern, American artist and designer
Theodore Spandounes, Greek historian
Theodore I. Spaulding (1913–2002), American politician
Theodore C. Speliotis (born 1953), American politician
Theodore Spencer (1902–1949), American poet and academic
Theodore Spicer-Simson (1871–1959), French sculptor and medallist
Theodore Spiering (1871–1925), American violinist, conductor and teacher
Theodore Spyropoulos, Greek archaeologist
Theodore Stanton (1851–1925), American journalist
Theodore Stearns (1881–1935), American classical composer
Theodore Stebbins (born 1938), American art historian
T. C. Steele (1847–1926), American painter
Theodore Steinmetz (1880–1951), American musician
Theodore Stephanides (1896–1983), Greek-British doctor and biologist
Theodore Stephenson (1856–1928), British Army general
Ted Stevens, American former Senator from Alaska
Theodore L. Stiles (1848–1925), American judge
Theodore Strauss (1912–2009), American writer
Theodore Streleski (born 1936), American murderer
Theodore Strong (1863–1928), American politician
Theodore Strongin (1918–1998), American entomologist
Theodore G. Stroup (born 1940), United States Army general
Theodore M. Stuart (1883–1946), American football player and coach
Theodore K. Stubbs (1847–1911), American politician from Pennsylvania
Theodore Sturgeon (1918–1985), American science fiction author
Theodore Summerland (1853–1919), American politician
Theodore Swann (1886–1955), American industrialist
Theodore Swanson (1873–1959), American farmer and politician
Theodore Swetz (born 1953), American actor, educator and theatre director
Theodore Swinarski (1905–1992), American politician and businessman
Theodore A. Switzler (1828–1879), American military officer
Theodore Tannenwald Jr. (1916–1999), judge of the United States Tax Court
Theodore Tapp (1883–1917), English cricketer and British Army officer
Ted Te, Filipino lawyer
Theodore Tengerdi (died 1308), Hungarian bishop
Theodore Theodoridis (born 1965), Greek football official
Theodore Thring (1816–1891), English cricketer and barrister
Theodore Tilton (1835–1907), American newspaper editor, poet and abolitionist
Theodore Timby (1819–1909), American inventor
Theodore Tinsley (1894–1979), American writer
Theodore Trautwein (1920–2000), American judge
Theodore Trautwein (politician) (1869–1955), hotelier, racehorse owner and politician from New South Wales, Australia
Theodore Ts'o, American computer scientist, free software developer
Theodore Turnbull, American politician
Theodore Tylor (1900–1968), British lawyer and international level chess player
Theodore Friederick Ulrich (1888–1963), Australian Army officer
Theodore Unmack (1835–1919), Australian politician
Theodore Ushev (born 1968), Bulgarian animator and filmmaker
Theodore Van Kirk (1921–2014), American navigator of the Enola Gay
Theodore Veale (1892–1980), English Victoria Cross recipient
Theodore Vigé (1867–?), French lepidopterist
Theodore H. Von Laue, American historian
Theodore Wachs (born 1941), American psychologist
Theodore Wade-Gery (1888–1972), British classical scholar
Theodore Wan (1953–1987), Chinese-Canadian photographer and artist
Theodore Ward (1902–1983), African-American playwright
Theodore Wassmer (1910–2006), American painter
Theodore Watts-Dunton (1832–1914), English critic and poet
Theodore Weesner (1935–2015), American author
Theodore Dwight Weld (1803–1895), American abolitionist
Theodore B. Wells, American architect
Theodore B. Werner (1892–1989), American politician
Theodore Wertime (1919–1982), American diplomat and historian
Theodore S. Westhusing (1960–2005), United States Army officer
Theodore Wharton (1875–1931), American film director
Theodore E. White, American paleontologist and zooarchaeologist
Theodore H. White (1915–1986), American historian and author
Theodore Whitmarsh (1869–1936), American businessman and politician
Theodore Whitmore (born 1972), Jamaican footballer and manager
Theodore Wildanger (1905–1989), French painter
Theodore Wilhelm (1909–1971), German actor
Theodore Hartridge Willard, American politician
Teddy Wilson (1912–1986), American jazz pianist
Theodore D. Wilson (1840–1896), American naval architect
Theodore Wilson (1943–1991), American actor
Theodore H. Winters Jr. (1913–2008), American flying ace during World War II
Theodore Winthrop (1828–1861), American novelist
Theodore Blake Wirgman (1848–1925), English painter
Theodore Wirth (1863–1949), Swiss-born American architect
Theodore Witcher, American screenwriter and director
Theodore Wolfner (1864–1929), Hungarian politician
Theodore Wong (1876–1919), Chinese translator
Theodore Tuttle Woodruff (1811–1892), American inventor
Theodore Woods (1874–1932), British bishop
Theodore Woodward (1914–2005), American medical researcher
Theodore Dwight Woolsey (1801–1889), American jurist; President of Yale University
Theodore Salisbury Woolsey (1852–1929), American legal scholar
Theodore Wores (1859–1939), American painter
Theodore Sunday Wrobeh (born 1981), Liberian footballer
Theodore Y. Wu (1924–2023), American engineer
Theodore Wynsdau (1895–1951), Belgian cyclist
Theodore Yates (born 1995), Australian bicycle racer
Theodore O. Yntema (1900–1985), American economist
Ted Yoho (born 1955), American politician
Theodore Yuyun (born 1989), Cameroonian footballer
Theodore Zeldin (born 1933), English historian and academic
Theodore Zichy (1908–1987), British actor, photographer, film director, producer and playboy
Theodore Ziolkowski (1932–2020), American scholar
Guy Theodore Sebastian, Malaysian-Australian singer
Tewodros II Ge'ez (ዳግማዊ ቴዎድሮስ) (1818–1868), Emperor of Ethiopia from 1855 until his death in 1868

Disambiguation

Fictional characters

Theodore "Beaver" Cleaver, the title character of Leave It to Beaver
Theodore Huxtable, character from The Cosby Show
Theodore Seville, character from Alvin and the Chipmunks