The 2017 Horizon League men's basketball tournament (also known as Motor City Madness) was the conference tournament for the Horizon League.

As a result, Northern Kentucky received the conference's automatic berth into the 2017 NCAA Division I men's basketball tournament, the first for the Norse in their first season of Division I eligibility.

The top six teams receive a bye into the quarterfinals.

This was a change from the previous season where the top two seeds received double byes into the semifinals.

[1] Teams were seeded by record within the conference, with a tiebreaker system to seed teams with identical conference records.