| Venue: | Stuttgart, Germany  |
| Date: | 13–18 August 1991 |
| Velodrome: | Hanns-Martin-Schleyer-Halle |
| Nations: | 53 |
| Events: | 15 |
| Previous: | Maebashi 1990 |
| Next: | Valencia 1992 |
The 1991 UCI Track Cycling World Championships were the World Championship for track cycling. They took place in Stuttgart, Germany from 13 to 18 August 1991. Fifteen events were contested, 12 for men (5 for professionals, 7 for amateurs) and 3 for women.
| Men's Professional Events | ||||||
| Men's sprint | Not awarded[1] | Fabrice Colas | Not awarded[2] | |||
| Men's keirin | Michael Hübner | Claudio Golinelli | Fabrice Colas | |||
| Men's points race | Viatcheslav Ekimov | Francis Moreau | Peter Pieters | |||
| Francis Moreau | Shaun Wallace | Colin Sturgess | ||||
| Men's motor-paced | Danny Clark | Peter Steiger | Arno Küttel | |||
| Men's Amateur Events | ||||||
| Men's sprint | Jens Fiedler | Bill Huck | Gary Neiwand | |||
| José Moreno | Jens Glücklich | Gene Samuel | ||||
| Men's points race | Bruno Risi | Stephen McGlede | Jan Bo Petersen | |||
| Jens Lehmann | Michael Glöckner | Jan Bo Petersen | ||||
| Men's team pursuit | Brett Aitken Stephen McGlede Shaun O'Brien Stuart O'Grady | |||||
| Men's tandem | Frédéric Lancien Denis Lemyre | |||||
| Men's motor-paced | Roland Königshofer | David Solari | Carsten Podlesch | |||
| Women's events | ||||||
| Women's sprint | Ingrid Haringa | Annett Neumann | Connie Paraskevin-Young | |||
| Women's points race | Ingrid Haringa | Kristel Werckx | Janie Eickhoff | |||
| Women's individual pursuit | Petra Rossner | Janie Eickhoff | Marion Clignet | |||