| Year: | 2003 |
| Conference: | Big South Conference |
| Division: | I |
| Gender: | Men's |
| Teams: | 8 |
| Arena: | Campus sites |
| Finalarena: | Vines Center |
| Finalcity: | Lynchburg, VA |
| Champions: | UNC Asheville |
| Titlecount: | 2nd |
| Coach: | Eddie Biedenbach |
| Coachcount: | 1st |
| Mvp: | Andre Smith |
| Mvpteam: | UNC Asheville |
The 2003 Big South Conference men's basketball tournament took place March 4–8, 2003, at campus sites. The tournament was won by the UNC Asheville Bulldogs, their second tournament championship, and first under head coach Eddie Biedenbach.[1]
All eight teams participated in the tournament. Teams were seeded by conference winning percentage. For the quarterfinals, all games were hosted at campus sites, with home-field advantage going to the higher seed, while the semifinals and finals were played at the Vines Center in Lynchburg, Virginia, the home of Liberty University. This was the last year for Elon as a member of the Big South.
* Asterisk indicates overtime game