| Year: | 1988 |
| Conference: | Midwestern Collegiate Conference |
| Division: | I |
| Gender: | Men's |
| Teams: | 6 |
| Arena: | Market Square Arena |
| City: | Indianapolis, Indiana |
| Champions: | Xavier |
| Titlecount: | 4th |
| Coach: | Pete Gillen |
| Coachcount: | 3rd |
| Mvp: | Byron Larkin (3rd MVP) |
| Mvpteam: | Xavier |
The 1988 Midwestern Collegiate Conference men's basketball tournament (now known as the Horizon League men's basketball tournament) was held March 10–12 at Market Square Arena in Indianapolis, Indiana.[1]
Xavier defeated in the championship game, 122–96, to win their third consecutive (fourth overall) MCC/Horizon League men's basketball tournament.
The Musketeers received an automatic bid to the 1988 NCAA tournament as the #11 seed in the Midwest region.
All six conference members participated in the tournament and were seeded based on regular season conference records, with the top two teams (Xavier, Evansville) earning a bye into the semifinal round.