The 2023–24 Northwestern Wildcats men's basketball team represented Northwestern University in the 2023–24 NCAA Division I men's basketball season.

The Wildcats played their home games at Welsh–Ryan Arena in Evanston, Illinois as members of the Big Ten Conference.

This season was also notable as the first time Northwestern defeated a number-one ranked opponent, during a home game against Purdue on February 12.

2 seed in the Big Ten tournament, they were upset in the quarterfinals by No.

The Wildcats received an at-large bid to the NCAA tournament, their second-ever appearance, as the No.