 Stefan Edberg finished the year ranked world No. 1 for the second time in his career. He won six singles titles during the season, including a major at the US Open. | |
| Details | |
|---|---|
| Duration | 31 December 1990 – 18 November 1991 |
| Edition | 2nd |
| Tournaments | 83 |
| Categories | Grand Slam (4) ATP Tour World Championships ATP Championship Series, Single-Week (9) ATP Championship Series (12) ATP World Series (54) Team Events (2) |
| Achievements (singles) | |
| Most tournament titles |  Stefan Edberg (6)  Guy Forget (6) |
| Most tournament finals | Stefan Edberg (8)  Pete Sampras (8) |
| Prize money leader | David Wheaton ($2,412,912) |
| Points leader | Stefan Edberg (3515) |
| Awards | |
| Player of the year | Stefan Edberg |
| Doubles team of the year |  John Fitzgerald Anders Järryd |
| Most improved player of the year | Jim Courier |
| Newcomer of the year |  Byron Black |
| Comeback player of the year | Jimmy Connors |
← 1990 1992 → | |
The 1991 IBM ATP Tour was the elite tour for professional men's tennis organized by the ATP Tour. The IBM ATP Tour included the Grand Slam tournaments (organized by the International Tennis Federation (ITF)), the ATP Championship Series, Single-Week, the ATP Championship Series, the ATP World Series and the ATP Tour World Championships. The World Team Cup, Davis Cup (organized by the ITF) and Grand Slam Cup (organized by the ITF) are included in this calendar but did not count towards the Tour.