The 2020–21 Oregon Ducks men's basketball team represented the University of Oregon during the 2020–21 NCAA Division I men's basketball season.

The Ducks, led by 11th-year head coach Dana Altman, played their home games at Matthew Knight Arena as members of the Pac–12 Conference.

They received an at-large bid to the NCAA tournament where they advanced to the Second Round due to a positive COVID-19 test from VCU.

[1] They defeated Iowa in the second round to advance to the Sweet Sixteen where they lost to USC.

They were set to take on rival Oregon State in the quarterfinals of the Pac-12 tournament.