| 1991 NCAA Division I Swimming and Diving Championships | |
|---|---|
 | |
| Host city |  Austin, Texas |
| Date(s) | March 1991 |
| Venue(s) | Texas Swimming Center University of Texas |
← 1990 1992 → | |
The 1991 NCAA Division I Men's Swimming and Diving Championships were contested in March 1991 at the Texas Swimming Center at the University of Texas in Austin, Texas at the 68th annual NCAA-sanctioned swim meet to determine the team and individual national champions of Division I men's collegiate swimming and diving in the United States.
Hosts Texas topped the team standings, the Longhorns' fourth consecutive and fifth overall men's title.