| 1946 NCAA swimming and diving championships | |
| Hostcity: | New Haven, Connecticut |
| Dates: | March 1946 |
| Venues: | Payne Whitney Gymnasium Yale University |
| Teams: | 17 |
| Previous: | 1945 |
| Next: | 1947 |
The 1946 NCAA swimming and diving championships were contested in March 1946 at the Payne Whitney Gymnasium at Yale University in New Haven, Connecticut at the 10th annual NCAA-sanctioned swim meet to determine the team and individual national champions of men's collegiate swimming and diving among its member programs in the United States.
Ohio State topped the team standings for the second consecutive year, capturing the Buckeyes' third national title.[1]
| Ohio State (DC) | 61 | |
| 37 | ||
| 18 | ||
| 14 | ||
| 11 | ||
| North Carolina | ||
| Cincinnati | 9 | |
| 6 | ||
| Stanford | ||
| 5 | ||
| 3 | ||
| Harvard | ||
| Illinois | ||
| 1 | ||
| Wayne (MI) | ||
| Yale (H) |
| 50-yard freestyle | Stanford | 23.1 | ||
| 100-yard freestyle | Ohio State | 52.1 | ||
| 220-yard freestyle | Ohio State | 2:11.3 | ||
| 440-yard freestyle | Ohio State | 4:47.2 | ||
| 1,500-meter freestyle | Williams | 20:26.2** | ||
| 150-yard backstroke | Navy | 1:35.6 | ||
| 200-yard butterfly | Cincinnati | 2:26.2 | ||
| 400-yard freestyle relay | Michigan State | 3:27.2 | ||
| 300-yard medley relay | Ohio State | 2:57.0 |
| One-meter diving | Ohio State | 101.96 | |||
| Three-meter diving | Ohio State | 118.10 |