California State Polytechnic University, Pomona (Cal Poly Pomona, CPP, or Cal Poly) is a public polytechnic university in Pomona, California in the Los Angeles metropolitan area. It is one of two polytechnics in the California State University system.

Cal Poly Pomona began as the southern campus of the California Polytechnic School (today known as Cal Poly San Luis Obispo) in 1938 when a completely equipped school and farm in the city of San Dimas were donated by Charles Voorhis and his son Jerry Voorhis. The southern campus grew further in 1949 when a horse ranch in the neighboring city of Pomona, which had belonged to Will Keith Kellogg, was acquired from the University of California. Cal Poly Pomona, then known as Cal Poly Kellogg-Voorhis, and Cal Poly San Luis Obispo continued operations under a unified administrative control until they became independent from one another in 1966.