| UAAP Season 66 | |
| Overall | |
| Tagline: | Olympism: Blending Sports with Culture and Education |
| Host: | Ateneo de Manila University |
| League: | UAAP |
| Prev: | 65 |
| Seasonlist: | Template:UAAP seasons |
| Next: | 67 |
UAAP Season 66 is the 2003−04 athletic year of the University Athletic Association of the Philippines, which was hosted by the Ateneo de Manila University. The season opened on July 12, 2003
See main article: UAAP Season 66 basketball tournaments.
Athletes of the Year: