The 1998–99 UTSA Roadrunners men's basketball team represented the University of Texas at San Antonio in the 1998–99 college basketball season.

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

They played their home games at the Convocation Center.

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

1 seed and eventual National champion UConn in the round of 64.