The 2002–03 Wisconsin Badgers men's basketball team represented University of Wisconsin–Madison as a member of the Big Ten Conference during the 2002–03 NCAA Division I men's basketball season.

The team played its home games at the Kohl Center in Madison, Wisconsin.

[1] In the quarterfinals of the Big Ten tournament in Chicago, top-seeded Wisconsin was upset by Ohio State.

[2] The Badgers received an at-large bid to the NCAA tournament as the fifth seed in the Midwest Region, where they won twice in Spokane,[3] then lost to No.

1 seed Kentucky by six points in the Sweet Sixteen at Minneapolis.