The 1978–79 USC Trojans men's basketball team represented the University of Southern California during the 1978–79 NCAA Division I men's basketball season.

Led by head coach Bob Boyd, they played their home games at the L. A.

Sports Arena in Los Angeles, California as members of the Pac-10 Conference.

The Trojans were 14–4 in the Pac-10 and finished second in the conference regular season standings behind UCLA.

USC received a bid to the NCAA tournament, the school's fifth appearance all-time.