The 2021–22 UC San Diego Tritons men's basketball team represented the University of California, San Diego in the 2021–22 NCAA Division I men's basketball season.

The Tritons, led by ninth-year head coach Eric Olen, played their games at the RIMAC Arena as members of the Big West Conference.

Their conference games did not count on the records of UCSD or any other member of the Big West.

In a season limited due to the ongoing COVID-19 pandemic, the Tritons finished the 2020–21 season 7–10, 4–8 in Big West play, although their Big West games were not counted in the conference standings.

They were ineligible for the NCAA tournament and Big West tournament as they were in the first year of their transition period from the California Collegiate Athletic Association in Division II.