State Route 225 (SR 225) is a state highway in the U.S. state of California.

The route that closely follows the beaches of the city of Santa Barbara. It starts off near the Earl Warren Showgrounds at the junction of U.S. Route 101 and Las Positas Road and heads south towards the coast before turning east on Cliff Drive. It then climbs up a small viaduct before descending near Santa Barbara City College and ending at Castillo Street and US 101.

Until 1998, it followed Cabrillo Boulevard along the beach, ending near Montecito.

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, and do not necessarily reflect current mileage. The entire route is in Santa Barbara, Santa Barbara County.