The Wilson Cup is the championship and trophy awarded annually to the Ontario University Athletics (OUA) men's basketball champion.

The championship is played at the home of the highest remaining playoff seed from either the East or West Division, depending on the year.

[1] The Cup was originally the championship trophy of the first Canadian Intercollegiate Athletic Union which existed until 1955 and despite its name, was composed only of Ontario and Quebec universities.

The Cup was then inherited by the original CIAU's successor, the Ontario-Quebec Athletic Association which eventually became the OUA.

Since the 1962–63 season the Wilson Cup winner has gone on to compete for the national championship W. P. McGee Trophy.