2009–10 BYU Cougars men's basketball team

The Cougars were members of the Mountain West Conference and played their home games at the Marriott Center.

They advanced to the semifinals of the 2010 Mountain West Conference men's basketball tournament before losing to UNLV.

They received an at–large bid to the 2010 NCAA Division I men's basketball tournament, earning a 7 seed in the West Region.

In the Mountain West preseason polls, released October 6 at The Mtn.

studios in Denver, Colorado, BYU was selected to finish first in the media poll.