1990 Southern Conference men's basketball tournament

The 1990 Southern Conference men's basketball tournament took place from March 2–4, 1990 at the Asheville Civic Center in Asheville, North Carolina. The East Tennessee State Buccaneers, led by head coach Les Robinson, won their second Southern Conference title and received the automatic berth to the 1990 NCAA tournament.

Format
All of the conference's eight members were eligible for the tournament. Teams were seeded based on conference winning percentage. The tournament used a preset bracket consisting of three rounds.