The 1978 Cal State Fullerton Titans football team represented California State University, Fullerton as a member of the Pacific Coast Athletic Association (PCAA) during the 1978 NCAA Division I-A football season.
Led by fourth-year head coach Jim Colletto, Cal State Fullerton compiled an overall record 5–7 with a mark of 2–2 in conference play, placing fourth in the PCAA.
The Titans played home games at Falcon Stadium on the campus of Cerritos College in Norwalk, California.
[14][15] No Cal State Fullerton Titans were selected in the 1979 NFL draft.
[16][17] The following finished their college career in 1978, were not drafted, but played in the NFL.