The 2002–03 Utah State Aggies men's basketball team represented Utah State University in the 2002–03 college basketball season.

This was head coach Stew Morrill's 5th season at Utah State.

The Aggies played their home games at the Dee Glen Smith Spectrum and were members of the Big West Conference.

They won the Big West tournament to earn an automatic bid to the 2003 NCAA Division I men's basketball tournament as No.

2 seed and eventual National runner-up Kansas in the opening round.