1986 Midwestern Collegiate Conference men's basketball tournament

The 1986 Midwestern Collegiate Conference men's basketball tournament (now known as the Horizon League men's basketball tournament) was held February 27–March 1 at Market Square Arena in Indianapolis, Indiana.

Xavier defeated in the championship game, 74–66, to win their first MCC/Horizon League men's basketball tournament.

The Musketeers received an automatic bid to the 1986 NCAA tournament as the #12 seed in the Southeast region.

Format
All seven conference members participated in the tournament and were seeded based on regular season conference records.