| 1965 NCAA University Division swimming and diving championships | |
| Hostcity: | Ames, Iowa |
| Dates: | March 1965 |
| Venues: | Beyer Hall Pool Iowa State University |
| Teams: | 38 |
| Events: | 17 |
| Previous: | 1964 |
| Next: | 1966 |
The 1965 NCAA University Division swimming and diving championships were contested at the 29th annual swim meet sanctioned and hosted by the NCAA to determine the individual and team national champions of men's collegiate swimming and diving among its University Division member programs in the United States, culminating the 1964–65 NCAA University Division swimming and diving season.
These championships were hosted by Iowa State University at the Beyer Hall Pool in Ames, Iowa during March 1964.
Two-time defending champions USC again topped the team standings, edging out Indiana by 6.5 points. This was the Trojans' fourth national title and fourth in five seasons.[1]
| USC (DC) | 285 | |
| 278.5 | ||
| 221 | ||
| 113.2 | ||
| 91.5 | ||
| 90 | ||
| 72.5 | ||
| UCLA | 50.5 | |
| 43 | ||
| 41 | ||
| Oregon | ||
| 30.5 | ||
| 30 | ||
| 27 | ||
| Arizona State | 21 | |
| 20 | ||
| 13.5 | ||
| Long Beach State | 12.5 | |
| Northeastern | ||
| 12.2 | ||
| UC Santa Barbara | 11.5 | |
| 10 | ||
| Illinois | ||
| 6.5 | ||
| Oregon State | 6 | |
| Air Force | 5 | |
| Cincinnati | ||
| Harvard | ||
| New Mexico | 4 | |
| Maryland | 3 | |
| Utah | ||
| 2.2 | ||
| 2 | ||
| Colorado State | 1 | |
| Iowa State (H) | ||
| Kansas State | ||
| Idaho | 0.2 | |
| Rutgers |
| 50 yard freestyle | Yale | 21.2 | ||
| 100 yard freestyle | Steve Clark (DC) | Yale | 46.1 | |
| 200 yard freestyle | USC | 1:42.9 | ||
| 500 yard freestyle | Roy Saari (DC) | USC | 4:43.6 | |
| 1,650 yard freestyle | Roy Saari (DC) | USC | 16:39.9 | |
| 100 yard backstroke | Michigan State | 52.6 | ||
| 200 yard backstroke | Michigan State | 1:56.2 | ||
| 100 yard breaststroke | Bill Craig (DC) | USC | 1:00.3 | |
| 200 yard breaststroke | Indiana | 2:10.4 | ||
| 100 yard butterfly | Indiana | 51.0 | ||
| 200 yard butterfly | Fred Schmidt (DC) | Indiana | 1:51.4 | |
| 200 yard individual medley | Ohio State | 1:51.8 | ||
| 400 yard individual medley | Michigan | 4:16.6 | ||
| 400 yard freestyle relay | Yale (DC) | 3:07.2 | ||
| 400 yard medley relay | Indiana | 3:30.7 |
| 1 meter diving | Indiana | 511.25 | ||
| 3 meter diving | Indiana | 565.05 |