The 1978–79 Utah State Aggies men's basketball team represented Utah State University as a member of the Pacific Coast Athletic Association during the 1978–79 men's college basketball season. The Aggies were led by head coach Dutch Belnap and played their home games at the Dee Glen Smith Spectrum in Logan, Utah. After finishing second in the conference regular season standings, Utah State received an at-large bid to the NCAA Tournament where they lost in the first round to Southern California.
^UC Santa Barbara was forced to vacated all wins during the 1978–79 season due to the use of ineligible players. UC Santa Barbara Record Book still includes win and loss totals.
^Two losses against UC Santa Barbara included in win count per UC Irvine Record Book.