Ocean Avenue is a road in Santa Monica, California that starts at the residential Adelaide Drive on the north end of Santa Monica and ends at Pico Boulevard. Ocean Avenue is the westernmost street in Santa Monica, and for most of its course it runs parallel to the Palisades Park, whose bluffs overlook the Pacific Coast Highway and Santa Monica State Beach.

As Ocean Avenue overlooks the ocean, many tourist hotels, restaurants, and expensive real estate can be found here. The Third Street Promenade is two blocks to the east. At the intersection of Ocean and Colorado is the Santa Monica Pier. Palisades Park is also home to some of the famed Santa Monica homeless population.

Many major east-west arterial roads such as Wilshire Boulevard, Santa Monica Boulevard and Pico Boulevard begin their western ends on Ocean Avenue. Past Pico, Ocean turns into Neilson Way. After Neilson Way hits Venice Beach the street becomes Pacific Avenue, which ends in Marina del Rey.

The intersection with California Ave leads to the Pacific Coast Highway.