| Host: | National University |
| 1978 UAAP season | |
| Higherseed: | |
| Higherseed Game1: | 86 |
| Higherseed Series: | 1 |
| Lowerseed Game1: | 84 |
| Lowerseed Series: | 0 |
| Duration: | October 1978 |
| Prevlink: | UAAP Season 40 men's basketball tournament |
| Prev: | 40 |
| Seasonlink: | UAAP Season 41 |
| Year: | 1978 |
| Nextlink: | UAAP Season 42 men's basketball tournament |
| Next: | 42 |
The 1978 UAAP men's basketball tournament was the 41st year of the men's tournament of the University Athletic Association of the Philippines (UAAP)'s basketball championship. Hosted by National University, the UE Warriors defeated the defending champions Adamson Falcons in the finals taking their fifteenth overall UAAP men's basketball championship. Prior to the start of the season, Ateneo de Manila University was admitted as the seventh member school of the league.[1]