The 2021 Southland Conference men's basketball tournament was the postseason men's basketball tournament for the 2020–21 season in the Southland Conference.
[2] Only the top 10 teams in the conference qualified for the tournament.
The top two seeds received triple byes into the semifinals in the merit-based format.
4 seeds received double byes to the quarterfinals.
Stephen F. Austin is serving a postseason ban and did not compete.