1929 Cal Poly Mustangs football team

The 1929 Cal Poly Mustangs football team represented California Polytechnic School—now known as California Polytechnic State University, San Luis Obispo—as a member of the California Coast Conference (CCC) during the 1929 college football season. Led by ninth-year head coach Al Agosti, Cal Poly compiled am overall record of 3–5 with a mark of 0–2 in conference play. The team was outscored by its opponents 146 to 130 for the season. The Mustangs played home games in San Luis Obispo, California.

Cal Poly was a two-year school until 1941. The Mustangs did not field a team in 1930 due to the polio epidemic.