The 2009–10 Utah State Aggies men's basketball team represented Utah State University in the 2009–10 college basketball season. This was head coach Stew Morrill's 12th season at Utah State. The Aggies played their home games at the Dee Glen Smith Spectrum and are members of the Western Athletic Conference. They finished the season 27–8, 14–2 to capture the regular season championship for the third consecutive year. They advanced to the championship game of the 2010 WAC Men's Basketball Tournament before losing to New Mexico State. They received an at–large bid to the 2010 NCAA Men's Division I Basketball Tournament, earning a 12 seed in the South Region, where they lost to 5 seed and AP #23 Texas A&M in the first round.