The 1973 Cal State Fullerton Titans football team represented California State University, Fullerton as a member of the California Collegiate Athletic Association (CCAA) during the 1973 NCAA Division II football season.
Led by second-year head coach Pete Yoder, Cal State Fullerton compiled an overall record of 7–4 with a mark of 1–3 in conference play, placing in a three-way tie for third in the CCAA.
The Titans played home games at Santa Ana Stadium in Santa Ana, California.
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