Thomas St George (October 1738 –1 April 1785) was an Irish politician. He sat in the House of Commons of Ireland from 1776 to 1785 as a Member of Parliament (MP) for the borough of Clogher in County Tyrone.

Parliament of Ireland
Preceded byWilliam Moore John StaplesMember of Parliament for Clogher 1776–1785 With: Sir Capel Molyneux, 3rd Bt 1776–1783 Sackville Hamilton from 1783Succeeded bySackville Hamilton John Francis Cradock