1991 ATP Tour World Championships – Doubles

John Fitzgerald and Anders Järryd defeated Ken Flach and Robert Seguso in the final, 6–4, 6–4, 2–6, 6–4 to win the doubles tennis title at the 1991 ATP Tour World Championships.

Guy Forget and Jakob Hlasek were the reigning champions, but did not compete this year.

Group A
''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''

Group B
''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''