The 1955 Cal Poly Mustangs football team represented California Polytechnic State College—now known as California Polytechnic State University, San Luis Obispo—as a member of the California Collegiate Athletic Association (CCAA) during the 1955 college football season.
Led by sixth-year head coach LeRoy Hughes, Cal Poly compiled an overall record of 7–3 with a mark of 1–1 in conference play, placing second in the CCAA.
[1] The team outscored its opponents 225 to 126 for the season.
The Mustangs played home games at Mustang Stadium in San Luis Obispo, California.
[12][13] The following were selected in the 1956 NFL draft.