The 2003–04 UTSA Roadrunners men's basketball team represented the University of Texas at San Antonio in the 2003–04 college basketball season.

This was head coach Tim Carter's 9th season at UTSA.

They played their home games at the Convocation Center.

They won the Southland tournament to advance to the NCAA tournament for the first time in five years.

16 seed in the West region, UTSA was beaten by No.