 | |||||||||||||
| Host school | Ateneo de Manila University | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
| Duration | October 2 to 5 | ||||||||||||
| Arena(s) | Araneta Coliseum | ||||||||||||
| Finals MVP | Arwind Santos | ||||||||||||
| Winning coach | Koy Banal | ||||||||||||
| Semifinalists |  UE Red Warriors De La Salle Green Archers | ||||||||||||
| TV network(s) | Studio 23 and TFC | ||||||||||||
The UAAP Season 66 men's basketball tournament refers to the men's basketball tournament of UAAP Season 66 (2003–04 season) of the University Athletic Association of the Philippines (UAAP). The tournament was hosted by Ateneo de Manila University. ABS-CBN covered the games on Studio 23.
After a UAAP Board decision that upheld the UE Red Warriors' protest against the DLSU Green Archers, three teams ended tied for first after the elimination round. By virtue of having the superior point differential from games among the tied teams, the defending champions Ateneo Blue Eagles secured the #1 seed; the FEU Tamaraws defeated UE in the second-seed playoff in a virtual game one of a best-of-3 series. Ateneo needed their twice-to-beat advantage to outlast La Salle in a fight-marred series to advance to the Finals, while FEU needed one game to eliminate a stubborn UE team. In the Finals, FEU coach Koy Banal led the team to victory over a tired Ateneo team coached by his brother Joel to win FEU's first UAAP men's basketball championship since 1997.
UE's James Yap was named Most Valuable Player (MVP) of the season. Arwind Santos was named Finals MVP.