The 2025–26 Cal State Fullerton Titans men's basketball team represented California State University, Fullerton during the 2025–26 NCAA Division I men's basketball season. The Titans, led by 13th-year head coach Dedrique Taylor, played their home games at Titan Gym in Fullerton, California as members of the Big West Conference.

Previous season The Titans finished the 2024–25 season 6–26, 1–19 in Big West play to finish in a tie for seventh place. Due to tiebreakers, they failed to qualify for the Big West tournament.

Preseason On October 16, 2025, the Big West Conference released their preseason coaches' poll. Cal State Fullerton was picked to finish last in the conference.

Preseason rankings +Big West Preseason Poll Place Team Points 1 98 (8) 2 93 (3) 3 76 4 69 5 63 6 58 7 54 8 31 9 26 10 20 11 Cal State Fullerton 17

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Preseason All-Big West Team No players were named the Preseason All-Big West Team.

Roster

Schedule and results

!colspan=12 style=""| Regular season

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Game summaries This section will be filled in as the season progresses.

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References