The 2017–18 Texas State Bobcats men's basketball team represented Texas State University in the 2017–18 NCAA Division I men's basketball season.

The Bobcats, led by fifth-year head coach Danny Kaspar, played their home games at Strahan Coliseum in San Marcos, Texas as members of the Sun Belt Conference.

9 seed in the Sun Belt tournament, they defeated Coastal Carolina before losing to Louisiana in the quarterfinals.

At the Sun Belt tournament they defeated Louisiana–Monroe and UT Arlington before losing in the championship game to Troy.

They received an invitation to the CollegeInsider.com Tournament where they defeated Lamar and Idaho before losing in the quarterfinals to Saint Peter's.