| Year: | 2002–03 |
| Team: | Marquette Golden Eagles |
| Sport: | Basketball |
| Conference: | Conference USA |
| Short Conf: | C-USA |
| Coachrank: | 6 |
| Aprank: | 9 |
| Record: | 27–6 |
| Conf Record: | 14–2 |
| Head Coach: | Tom Crean |
| Hc Year: | 4th |
| Asst Coach1: | Darrin Horn |
| Ac1 Year: | 4th |
| Asst Coach2: | Dwayne Stephens |
| Ac2 Year: | 4th |
| Champion: | Conference USA regular season champions |
| Tourney Result: | Final Four |
The 2002–03 Marquette Golden Eagles men's basketball team represented Marquette University in NCAA Division I competition in the 2002–03 season. The Golden Eagles, coached by Tom Crean, were then a member of Conference USA; they did not join their current conference, the Big East, until the 2005–06 season.
Since their national championship in 1977, this is Marquette's sole Final Four appearance.
|-!colspan=9 style=| C-USA Tournament|-!colspan=9 style=| NCAA tournament[1]
See main article: 2002–03 NCAA Division I men's basketball rankings.
| 1 | 5 | 2003 | ||
| 2 | 2 | 2006 | ||
| 2 | 8 | 2005 | ||