See main article: 1991 GTE U.S. Men's Hard Court Championships.
Scott Davis and David Pate were the defending champions, but lost in the semifinals to Kent Kinnear and Sven Salumaa.
Ken Flach and Robert Seguso won the title by defeating Kinnear and Salumaa 7–6, 6–4 in the final.[1] [2]
The first four seeds received a bye into the second round.