The 2020–21 Portland State Vikings men's basketball team represented Portland State University in the 2020–21 NCAA Division I men's basketball season.

The Vikings, led by fourth-year head coach Barret Peery, played their home games at Viking Pavilion in Portland, Oregon as members of the Big Sky Conference.

They lost in the first round of the Big Sky tournament to Northern Arizona.

Due to the ongoing coronavirus pandemic, all postseason tournaments were canceled, including the Big Sky tournament.

[1] Roster Last update: December 11, 2020 Source[2]