The 2020–21 Kansas State Wildcats men's basketball team represented Kansas State University in the 2020–21 NCAA Division I men's basketball season, their 118th basketball season.

Their head coach is Bruce Weber in his ninth year at the helm of the Wildcats.

The team played their home games in Bramlage Coliseum in Manhattan, Kansas as members of the Big 12 Conference.

They defeated TCU in the first round of the Big 12 tournament before losing in the quarterfinals to Baylor.

Roster Last update: March 25, 2021 *AP does not release post-NCAA tournament rankings^Neither poll released a Week 1 ranking list.