This page covers all the important events in the sport of tennis in 1990. Primarily, it provides the results of notable tournaments throughout the year on both the ATP and WTA Tours, the Davis Cup, and the Fed Cup.

The 1990 Australian Open, the first major of the year, was a tennis tournament that took place at Flinders Park in Melbourne. It was held from 15 to 28 January.

Category	Champion(s)	Finalist(s)	Score
Men's singles	Ivan Lendl	Stefan Edberg	4–6, 7–6(7–3), 5–2 ret.
Women's singles	Steffi Graf	Mary Joe Fernández	6–3, 6–4
Men's doubles	Pieter Aldrich Danie Visser	Grant Connell Glenn Michibata	6–4, 4–6, 6–1, 6–4
Women's doubles	Jana Novotná Helena Suková	Patty Fendick Mary Joe Fernández	7–6(7–5), 7–6(8–6)
Mixed doubles	Natasha Zvereva Jim Pugh	Zina Garrison Rick Leach	4–6, 6–2, 6–3

The 1990 French Open took place at the Stade Roland Garros in Paris, France from 28 May until 10 June.

Category	Champion(s)	Finalist(s)	Score
Men's singles	Andrés Gómez	Andre Agassi	6–3, 2–6, 6–4, 6–0
Women's singles	Monica Seles	Steffi Graf	7–6(8–6), 6–4
Men's doubles	Sergio Casal Emilio Sánchez Vicario	Goran Ivanišević Petr Korda	7–5, 6–3
Women's doubles	Jana Novotná Helena Suková	Larisa Neiland Natasha Zvereva	6–4, 7–5
Mixed doubles	Arantxa Sánchez Vicario Jorge Lozano	Nicole Provis Danie Visser	7–6(7–5), 7–6(10–8)

The 1990 Wimbledon Championships, the only major played on grass courts, took place at the All England Lawn Tennis and Croquet Club in Wimbledon, London, England. It was held from 25 June to 8 July.

Category	Champion(s)	Finalist(s)	Score
Men's singles	Stefan Edberg	Boris Becker	6–2, 6–2, 3–6, 3–6, 6–4
Women's singles	Martina Navratilova	Zina Garrison	6–4, 6–1
Men's doubles	Rick Leach Jim Pugh	Pieter Aldrich Danie Visser	7–6(7–5), 7–6(7–4), 7–6(7–5)
Women's doubles	Jana Novotná Helena Suková	Kathy Jordan Elizabeth Smylie	6–4, 6–1
Mixed doubles	Zina Garrison Rick Leach	Elizabeth Smylie John Fitzgerald	7–5, 6–2

The 1990 US Open, the last tennis major of the year, was played at the USTA National Tennis Center in New York City, United States, being held from 27 August to 9 September.

Category	Champion(s)	Finalist(s)	Score
Men's singles	Pete Sampras	Andre Agassi	6–4, 6–3, 6–2
Women's singles	Gabriela Sabatini	Steffi Graf	6–2, 7–6(7–4)
Men's doubles	Pieter Aldrich Danie Visser	Paul Annacone David Wheaton	6–2, 7–6(7–3), 6–2
Women's doubles	Gigi Fernández Martina Navratilova	Jana Novotná Helena Suková	6–2, 6–4
Mixed doubles	Elizabeth Smylie Todd Woodbridge	Natalia Zvereva Jim Pugh	6–4, 6–2

United States 3	Suncoast Dome, St. Petersburg, Florida, United States November 30 – December 2 Clay (indoors)		Australia 2
1 2 3 4 5 1 Andre Agassi Richard Fromberg 4 6 6 2 4 6 6 2 6 4   2 Michael Chang Darren Cahill 6 2 77 65 6 0       3 Rick Leach / Jim Pugh Pat Cash / John Fitzgerald 6 4 6 2 3 6 77 62     4 Andre Agassi Darren Cahill 6 4 4 6       retired   5 Michael Chang Richard Fromberg 5 7 6 2 3 6

United States 2	Peachtree World of Tennis, Norcross, Georgia, United States July 29 Hard		Soviet Union 1
1 2 3 1 Jennifer Capriati Leila Meskhi 77 64 6 2     2 Zina Garrison Natasha Zvereva 6 4 3 6 3 6   3 Gigi Fernández / Zina Garrison Larisa Savchenko / Natasha Zvereva 6 4 6 3

• Frankfurt, Germany (November 13–18)
  • Singles: Andre Agassi defeated Stefan Edberg, 5–7, 7–6^(7–5), 7–5, 6–2

Tournament	Week	Singles winner and score	Singles runner-up	Doubles winners and score	Doubles runners-up
Indian Wells	March 5	Stefan Edberg 6–4, 5–7, 7–6, 7–6	Andre Agassi	Becker Forget 6–4, 6–3	Grabb P McEnroe
Miami	March 12	Andre Agassi 6–1, 6–4, 0–6, 6–2	Stefan Edberg	Leach Pugh 6–7, 6–4, 6–2	Becker Motta
Monte Carlo	April 23	Andrei Chesnokov 7–5, 6–3, 6–3	Thomas Muster	Korda Šmíd 6–2, 6–1	Gómez J Sánchez
Hamburg	May 7	Juan Aguilera 6–1, 6–0, 7–6	Boris Becker	Bruguera Courier 4–6, 6–1, 7–6	Riglewski Stich
Rome	May 14	Thomas Muster 6–1, 6–3, 6–1	Andrei Chesnokov	Casal E Sánchez 7–6, 7–5	Courier Davis
Toronto	July 23	Michael Chang 4–6, 6–3, 7–6	Jay Berger	Annacone Wheaton 6–4, 6–4	Dyke Lundgren
Cincinnati	August 6	Stefan Edberg 6–1, 6–1	Brad Gilbert	Cahill Kratzmann 7–6, 6–4	Broad Muller
Stockholm	October 22	Boris Becker 6–4, 6–0, 6–3	Stefan Edberg	Forget Hlasek 6–2, 6–3	Fitzgerald Järryd
Paris	October 29	Stefan Edberg 3–3, retired	Boris Becker	Davis Pate 7–6, 7–6	Cahill Kratzmann

• New York City, USA (November 18–24)
  • Singles: Monica Seles defeated Gabriela Sabatini, 6–4, 5–7, 3–6, 6–4, 6-2

Tournament	Singles winner and score	Singles runner-up	Doubles winners and score	Doubles runners-up
Chicago	Martina Navratilova 6–3, 6–2	Manuela Maleeva-Fragniere
Miami	Monica Seles 6–1, 6–2	Judith Wiesner
Hilton Head	Martina Navratilova 6–2, 6–4	Jennifer Capriati
Rome	Monica Seles 6–1, 6–1	Martina Navratilova
Berlin	Monica Seles 6–4, 6–3	Steffi Graf
Toronto	Steffi Graf 6–1, 6–7(6–8), 6–3	Katerina Maleeva

• Class of 1990:
  • Jan Kodeš, player
  • Joseph Cullman, contributor

• 1990 in sports