| Mode: | Basketball |
| Year: | 2003–04 |
| Prev Year: | 2002–03 |
| Next Year: | 2004–05 |
| Team: | Saint Joseph's Hawks |
| Conference: | Atlantic 10 |
| Short Conf: | Atlantic 10 |
| Coachrank: | 5 |
| Aprank: | 5 |
| Record: | 30–2 |
| Conf Record: | 16–0 |
| Hc Year: | 9th |
| Asst Coach1: | Mark Bass |
| Ac1 Year: | 5th |
| Ac2 Year: | 11th |
| Ac3 Year: | 8th |
| Tourney Result: | Elite Eight Atlantic 10 Regular Season Champions |
The 2003–04 Saint Joseph's Hawks men's basketball team represented Saint Joseph's University during the 2003–04 NCAA Division I men's basketball season. The group is one of 25 teams to finish the regular season undefeated in men's division I basketball. They were the last to do so until Wichita State did it in 2014. Under 9th-year head coach Phil Martelli, the Hawks held an overall record of 27–0 and a conference record of 16–0 in the regular season before losing to Xavier in the A-10 tournament and Oklahoma State in the East Regional Final of the NCAA tournament.[1]
[2] |-!colspan=9 style=| Regular season|-!colspan=9 style=| Atlantic 10 tournament|-!colspan=9 style=| NCAA tournament
See main article: 2003–04 NCAA Division I men's basketball rankings.
The Hawks dominated the regular season, going 27-0 . In the Atlantic 10 tournament, the Hawks received a #1 seed, which included a first-round bye. However, they lost badly to the Xavier Musketeers 87–67. Despite their early exit, the Hawks still received a #1 seed in the NCAA Tournament. The Hawks also won the Philadelphia Big 5, going 4–0.
See main article: 2004 NCAA Division I men's basketball tournament.
The Hawks received a #1 seed and defeated Liberty, Texas Tech, and Wake Forest in the First, second, and third rounds, respectively. In the Elite 8 match-up against Oklahoma State, the Hawks lost by 2 points. John Lucas III of Oklahoma State hit a go-ahead three with only a few seconds left. Jameer Nelson attempted to tie the game on the ensuing possession, but his 15 ft. shot fell short.