Patrick Galbraith and Anders Järryd were the defending champions, but Galbraith chose not to participate, and only Jarryd competed that year.
Jarryd partnered with John Fitzgerald, but lost in the first round to Marc-Kevin Goellner and David Prinosil.
Paul Haarhuis and Mark Koevermans were the defending champions, but did not participate together this year. Haarhuis did not participate this year. Koevermans partnered David Rikl, losing in the first round.
Sergio Casal and Emilio Sánchez were the defending champions, but lost in the semifinals this year.
Pieter Aldrich and Danie Visser were the defending champions, but lost in the first round to Paul Haarhuis and Mark Koevermans.
Scott Davis and David Pate won the title, defeating Patrick McEnroe and David Wheaton 6–1, 4–6, 6–4, 5–7, 9–7, in the final. This was Pate's first Grand Slam title and final, despite gaining the World No. 1 ranking two weeks earlier.
John Fitzgerald and Anders Järryd lost in the third round to McEnroe and Wheaton. It was their only Grand Slam loss of the year, as they won the other three majors in 1991.
Scott Davis and David Pate were the defending champions, but were defeated in the semifinals to fellow Americans Kelly Jones and Rick Leach.
Pete Sampras was the defending champion.
Sergio Casal and Emilio Sánchez were the defending champions, but did not participate this year.
The men's doubles tournament at the 1991 US Open was held from August 26 to September 8, 1991, on the outdoor hard courts of the USTA National Tennis Center in New York City, United States. John Fitzgerald and Anders Järryd won the title, defeating Scott Davis and David Pate in the final.
John Fitzgerald and Anders Järryd defeated Javier Frana and Leonardo Lavalle in the final, 6–3, 6–4, 6–7(7–9), 6–1 to win the gentlemen's doubles title at the 1991 Wimbledon Championships. It was Fitzgerald and Järryd's third Wimbledon final in four years.
The men's doubles event at the 1991 French Open tennis tournament was held from 27 May until 9 June 1991 on the outdoor clay courts at the Stade Roland Garros in Paris, France. John Fitzgerald and Anders Järryd won the title, defeating Goran Ivanišević and Petr Korda in the final.
Boris Becker and Michael Stich were the defending champions, but Becker did not compete this year. Stich teamed up with Udo Riglewski and lost in quarterfinals to Sergio Casal and Emilio Sánchez.
There was no defending champions for this year, as the previous final between Tomás Carbonell and Diego Pérez against Paul Haarhuis and Mark Koevermans was cancelled due to rain.
Richard Krajicek and Jan Siemerink were the defending champions, but none competed this year.
Paul Haarhuis and Mark Koevermans were the defending champions, but competed this year with different partners. Haarhuis teamed up with Jacco Eltingh and lost in the semifinals to Henrik Holm and Anders Järryd, while Koevermans teamed up with Jan Apell and lost in the first round to Javier Sánchez and Daniel Vacek.
Sergio Casal and Emilio Sánchez successfully defended their title by defeating Carl-Uwe Steeb and Michael Stich in the final, 5–7, 6–4, 6–3.
Tomáš Šmíd and Petr Korda were the defending champions, but Korda chose not to participate. Šmid partnered Karel Nováček, but lost in the first round to Ronnie Båthman and Rikard Bergh.
Sergio Casal and Emilio Sánchez were the defending champions, but lost to Omar Camporese and Goran Ivanišević in the quarterfinals. Camporese and Ivanisevic went on to win the title, defeating Luke Jensen and Laurie Warder in the finals, 6–2, 6–3.
Sergio Casal and Emilio Sánchez were the two-time defending champions, but lost to Paul Haarhuis and Mark Koevermans in the semifinals.
Pieter Aldrich and Danie Visser were the defending champions, but Aldrich did not compete this year. Visser teamed up with Gary Muller and lost in the quarterfinals to Nick Brown and Richard Vogel.
Michael Stich was the defending champion, but lost in the final to Ivan Lendl. The score was 7–5, 6–3.
Wayne Ferreira 
Paul Haarhuis 
