The 2011–12 Cal State Fullerton Titans men's basketball team represented California State University, Fullerton during the 2011–12 NCAA Division I men's basketball season.

The Titans, led by ninth year head coach Bob Burton, played their home games at Titan Gym and are members of the Big West Conference.

They lost in the quarterfinals of the Big West tournament to UC Irvine.

[1] They were invited to the 2012 CollegeInsider.com Tournament where they lost in the first round to Loyola Marymount.

[2] Following the season, head coach Bob Burton was fired after posting a record of 155–122 in nine seasons.