2023 Cal State Fullerton Titans baseball team

The 2023 Cal State Fullerton Titans baseball team represents California State University, Fullerton during the 2023 NCAA Division I baseball season. The Titans play their home games at Goodwin Field. They are led by Jason Dietrich.

Previous season
The Titans finished 22–33 overall, and 14–16 in the conference, and they failed to qualify for the 2022 NCAA Division I baseball tournament. It was the program's third consecutive season with a losing streak.

Schedule
! colspan=2 style="" | Regular season
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Source: Rankings are based on the team's current ranking in the D1Baseball poll. Parentheses indicate tournament seedings.