The 2018–19 Cal State Bakersfield Roadrunners men's basketball team represented California State University, Bakersfield in the 2018–19 NCAA Division I men's basketball season.

The Roadrunners were led by eighth-year head coach Rod Barnes and competed at the Icardo Center.

They were invited to the CollegeInsider.com Tournament where they defeated Cal State Fullerton in the first round to win the Riley Wallace Classic and defeated Southern Utah in the second round before losing in the quarterfinals to Green Bay.

The Roadrunners finished as a runner–up from defeating Alaska Anchorage and Idaho but losing to Central Michigan.

In the postseason, CSU Bakersfield lost to Utah Valley in the quarterfinals of the 2018 WAC men's basketball tournament in Paradise, Nevada.