The 1966 Davis Cup was the 55th edition of the Davis Cup, the most important tournament between national teams in men's tennis. 32 teams entered the Europe Zone, 8 teams entered the Eastern Zone, and 6 teams entered the America Zone.

For this year's competition the Europe Zone was split into two sub-zones. 16 teams competed in each sub-zone, with the winners of both sub-zones progressing to the Inter-Zonal Zone. This meant that 4 teams would now compete in the Inter-Zonal Zone for the right to challenge the defending champions Australia.

The United States defeated Mexico in the America Zone final, India defeated Japan in the Eastern Inter-Zonal final, and Brazil and West Germany were the winners of the two Europe sub-zones, defeating France and South Africa respectively.

In the Inter-Zonal Zone, India defeated West Germany and Brazil defeated the United States in the semifinals, and then India defeated Brazil in the final. India was then defeated by Australia in the Challenge Round. The final was played at Kooyong Stadium in Melbourne, Australia on 26–28 December.

America Zone

Draw

Quarterfinals 8 April–3 MaySemifinals 19–30 MayFinal 13–15 August
Mexico
Mexico City, Mexico (clay)
bye
Mexico4
Buenos Aires, Argentina (clay)
Argentina1
Argentina3
Cleveland, OH, United States (hard)
Chile2
Mexico0
Caracas, Venezuela (hard)
United States5
Venezuela2
Kingston, Jamaica
Caribbean/West Indies3
Caribbean/West Indies1
United States4
bye
United States

Final

United States vs. Mexico

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United States 5Harold Clark Courts, Cleveland, OH, United States 13–15 August 1966 HardMexico 0
1 2 3 4 5 1 United States Mexico Clark Graebner Joaquín Loyo Mayo 6 0 4 6 6 1 3 6 6 3 2 United States Mexico Dennis Ralston Rafael Osuna 6 4 2 6 7 5 6 1 3 United States Mexico Clark Graebner/Dennis Ralston Joaquín Loyo Mayo/Rafael Osuna 6 1 6 4 6 0 4 United States Mexico Cliff Richey Marcello Lara 11 13 6 0 12 10 6 4 5 United States Mexico Clark Graebner Rafael Osuna 6 3 6 4 6 4
1United States MexicoClark Graebner Joaquín Loyo Mayo6 04 66 13 66 3
2United States MexicoDennis Ralston Rafael Osuna6 42 67 56 1
3United States MexicoClark Graebner/Dennis Ralston Joaquín Loyo Mayo/Rafael Osuna6 16 46 0
4United States MexicoCliff Richey Marcello Lara11 136 012 106 4
5United States MexicoClark Graebner Rafael Osuna6 36 46 4

Eastern Zone

Zone A

Semifinals 17–19 AprilFinal 30 April–2 May
Seoul, South Korea
Philippines3
Manila, Philippines
South Korea2
Philippines2
Japan3
bye
Japan

Zone B

QuarterfinalsSemifinals 19 March–19 AprilFinal 7–9 May
Ceylonw/o
Kuala Lumpur, Malaysia
South Vietnam
Ceylon4
Malaysia1
Malaysia
Madras, India
bye
Ceylon0
India5
bye
Ahmedabad, India
Iran
Iran0
India5
bye
India

Eastern Inter-Zonal Final

Japan vs. India

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Japan 1Tokyo, Japan 30 September–3 October 1966India 4
1 2 3 4 5 1 Japan India Osamu Ishiguro Ramanathan Krishnan 3 6 6 2 2 6 8 10 2 Japan India Koji Watanabe Premjit Lall 6 3 4 6 6 3 3 6 9 7 3 Japan India Osamu Ishiguro/Koji Watanabe Ramanathan Krishnan/Premjit Lall 2 6 3 6 3 6 4 Japan India Osamu Ishiguro Premjit Lall 6 2 6 8 5 7 8 10 5 Japan India Koji Watanabe Ramanathan Krishnan 2 6 5 7 0 6
1Japan IndiaOsamu Ishiguro Ramanathan Krishnan3 66 22 68 10
2Japan IndiaKoji Watanabe Premjit Lall6 34 66 33 69 7
3Japan IndiaOsamu Ishiguro/Koji Watanabe Ramanathan Krishnan/Premjit Lall2 63 63 6
4Japan IndiaOsamu Ishiguro Premjit Lall6 26 85 78 10
5Japan IndiaKoji Watanabe Ramanathan Krishnan2 65 70 6

Europe Zone

Zone A

First Round 29 April–2 MayQuarterfinals 13–17 MaySemifinals 10–12 JuneFinal 15–17 July
Paris, France (clay)
France4
Paris, France (clay)
Romania1
France5
Helsinki, Finland (clay)
Canada0
Finland1
Paris, France (clay)
Canada4
France4
Bratislava, Czechoslovakia (clay)
Czechoslovakia1
Czechoslovakia5
Prague, Czechoslovakia (clay)
Austria0
Czechoslovakia5
Lisbon, Portugal (clay)
Israel0
Portugal2
Paris, France (clay)
Israel3
France1
Szczecin, Poland (clay)
Brazil4
Poland3
Warsaw, Poland
Sweden2
Poland4
Istanbul, Turkey
Egypt1
Turkey0
Warsaw, Poland
Egypt5
Poland1
Barcelona, Spain (clay)
Brazil4
Spain4
Barcelona, Spain (clay)
Yugoslavia1
Spain2
Copenhagen, Denmark (clay)
Brazil3
Denmark0
Brazil5

Zone A Final

France vs. Brazil

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France 1Stade Roland Garros, Paris, France 15–17 July 1966 ClayBrazil 4
1 2 3 4 5 1 France Brazil Pierre Darmon José Edison Mandarino 6 3 3 6 2 6 1 6 2 France Brazil François Jauffret Thomaz Koch 6 2 1 6 3 6 2 6 3 France Brazil Patrice Beust/Daniel Contet Thomaz Koch/José Edison Mandarino 6 3 4 6 7 5 3 6 4 6 4 France Brazil François Jauffret José Edison Mandarino 4 6 1 6 7 5 2 6 5 France Brazil Pierre Darmon Thomaz Koch 6 4 9 7 6 2
1France BrazilPierre Darmon José Edison Mandarino6 33 62 61 6
2France BrazilFrançois Jauffret Thomaz Koch6 21 63 62 6
3France BrazilPatrice Beust/Daniel Contet Thomaz Koch/José Edison Mandarino6 34 67 53 64 6
4France BrazilFrançois Jauffret José Edison Mandarino4 61 67 52 6
5France BrazilPierre Darmon Thomaz Koch6 49 76 2

Zone B

First Round 22 April–2 MayQuarterfinals 13–16 MaySemifinals 10–12 JuneFinal 15–18 July
Mondorf-les-Bains, Luxembourg
Luxembourg0
Lugano, Switzerland
Switzerland5
Switzerland1
Freiburg, West Germany (clay)
West Germany4
West Germany5
Hanover, West Germany (clay)
Norway0
West Germany3
Budapest, Hungary
Great Britain2
Hungary4
Budapest, Hungary (clay)
Greece1
Hungary2
London, England (clay)
Great Britain3
Great Britain4
Munich, West Germany
New Zealand1
West Germany3
Bologna, Italy (clay)
South Africa2
Italy4
Soviet Union1
Italyw/o
Monte Carlo, Monaco
Morocco
Monaco1
Rome, Italy (clay)
Morocco4
Italy2
Scheveningen, Netherlands (clay)
South Africa3
Netherlands5
Scheveningen, Netherlands (clay)
Ireland0
Netherlands1
Brussels, Belgium
South Africa4
Belgium0
South Africa5

Zone B Final

West Germany vs. South Africa

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West Germany 3Munich, West Germany 15–18 July 1966South Africa 2
1 2 3 4 5 1 West Germany South Africa Wilhelm Bungert Cliff Drysdale 6 3 0 6 8 6 6 4 2 West Germany South Africa Ingo Buding Keith Diepraam 6 2 6 1 1 6 6 4 3 West Germany South Africa Ingo Buding/Harald Elschenbroich Keith Diepraam/Frew McMillan 1 6 7 5 6 1 5 7 5 7 4 West Germany South Africa Wilhelm Bungert Keith Diepraam 12 10 6 2 6 3 5 West Germany South Africa Ingo Buding Cliff Drysdale 4 6 9 7 5 7 0 6
1West Germany South AfricaWilhelm Bungert Cliff Drysdale6 30 68 66 4
2West Germany South AfricaIngo Buding Keith Diepraam6 26 11 66 4
3West Germany South AfricaIngo Buding/Harald Elschenbroich Keith Diepraam/Frew McMillan1 67 56 15 75 7
4West Germany South AfricaWilhelm Bungert Keith Diepraam12 106 26 3
5West Germany South AfricaIngo Buding Cliff Drysdale4 69 75 70 6

Inter-Zonal Zone

Draw

Semifinals 5–14 NovemberFinal 4–6 December
Calcutta, India
EUR-BWest Germany2
Calcutta, India
EASIndia3
EASIndia3
Porto Alegre, Brazil (clay)
EUR-ABrazil2
AMEUnited States2
EUR-ABrazil3

Semifinals

India vs. West Germany

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India 3Calcutta, India 12–14 November 1966West Germany 2
1 2 3 4 5 1 India West Germany Ramanathan Krishnan Wilhelm Bungert 7 5 7 5 6 4 2 India West Germany Jaidip Mukerjea Ingo Buding 2 6 6 5 6 3 6 4 3 India West Germany Premjit Lall/Jaidip Mukerjea Ingo Buding/Wilhelm Bungert 1 6 8 10 4 6 4 India West Germany Jaidip Mukerjea Wilhelm Bungert 4 6 8 6 8 6 6 3 5 India West Germany Premjit Lall Ingo Buding 6 4 3 6 6 3 1 6 4 6
1India West GermanyRamanathan Krishnan Wilhelm Bungert7 57 56 4
2India West GermanyJaidip Mukerjea Ingo Buding2 66 56 36 4
3India West GermanyPremjit Lall/Jaidip Mukerjea Ingo Buding/Wilhelm Bungert1 68 104 6
4India West GermanyJaidip Mukerjea Wilhelm Bungert4 68 68 66 3
5India West GermanyPremjit Lall Ingo Buding6 43 66 31 64 6

Brazil vs. United States

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Brazil 3Club Leopoldina Juvenil, Porto Alegre, Brazil 5–7 November 1966United States 2
1 2 3 4 5 1 Brazil United States Thomaz Koch Dennis Ralston 4 6 4 6 0 6 2 Brazil United States José Edison Mandarino Cliff Richey 5 7 6 3 7 5 6 3 3 Brazil United States Thomaz Koch/José Edison Mandarino Arthur Ashe/Dennis Ralston 5 7 4 6 6 4 2 6 4 Brazil United States Thomaz Koch Cliff Richey 6 1 7 5 6 1 5 Brazil United States José Edison Mandarino Dennis Ralston 4 6 6 4 4 6 6 4 6 1
1Brazil United StatesThomaz Koch Dennis Ralston4 64 60 6
2Brazil United StatesJosé Edison Mandarino Cliff Richey5 76 37 56 3
3Brazil United StatesThomaz Koch/José Edison Mandarino Arthur Ashe/Dennis Ralston5 74 66 42 6
4Brazil United StatesThomaz Koch Cliff Richey6 17 56 1
5Brazil United StatesJosé Edison Mandarino Dennis Ralston4 66 44 66 46 1

Final

India vs. Brazil

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India 3Calcutta, India 4–6 December 1966Brazil 2
1 2 3 4 5 1 India Brazil Jaidip Mukerjea Thomaz Koch 2 6 2 6 3 6 2 India Brazil Ramanathan Krishnan José Edison Mandarino 5 7 6 2 6 2 6 3 3 India Brazil Ramanathan Krishnan/Jaidip Mukerjea Thomaz Koch/José Edison Mandarino 7 5 3 6 6 3 3 6 6 3 4 India Brazil Jaidip Mukerjea José Edison Mandarino 7 9 6 3 4 6 6 3 5 7 5 India Brazil Ramanathan Krishnan Thomaz Koch 3 6 6 4 10 12 7 5 6 2
1India BrazilJaidip Mukerjea Thomaz Koch2 62 63 6
2India BrazilRamanathan Krishnan José Edison Mandarino5 76 26 26 3
3India BrazilRamanathan Krishnan/Jaidip Mukerjea Thomaz Koch/José Edison Mandarino7 53 66 33 66 3
4India BrazilJaidip Mukerjea José Edison Mandarino7 96 34 66 35 7
5India BrazilRamanathan Krishnan Thomaz Koch3 66 410 127 56 2

Challenge Round

Australia vs. India

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Australia 4Kooyong Stadium, Melbourne, Australia 26–28 December 1966 GrassIndia 1
1 2 3 4 5 1 Australia India Fred Stolle Ramanathan Krishnan 6 3 6 2 6 4 2 Australia India Roy Emerson Jaidip Mukerjea 7 5 6 4 6 2 3 Australia India John Newcombe/Tony Roche Ramanathan Krishnan/Jaidip Mukerjea 6 4 5 7 4 6 4 6 4 Australia India Roy Emerson Ramanathan Krishnan 6 0 6 2 10 8 5 Australia India Fred Stolle Jaidip Mukerjea 7 5 6 8 6 3 5 7 6 3
1Australia IndiaFred Stolle Ramanathan Krishnan6 36 26 4
2Australia IndiaRoy Emerson Jaidip Mukerjea7 56 46 2
3Australia IndiaJohn Newcombe/Tony Roche Ramanathan Krishnan/Jaidip Mukerjea6 45 74 64 6
4Australia IndiaRoy Emerson Ramanathan Krishnan6 06 210 8
5Australia IndiaFred Stolle Jaidip Mukerjea7 56 86 35 76 3

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