Westlake is a neighborhood in Los Angeles, California. It should not be confused with Westlake Village, an independent municipality in Los Angeles County near Thousand Oaks and close to the Ventura County line.
Westlake derives its name from the lake in what is now MacArthur Park.
Westlake, which includes Pico-Union, is bordered by Downtown Los Angeles on the southeast, Santa Monica Freeway on the south, Koreatown on the west, Virgil Village on the north, and Echo Park on the northeast. One major subdistrict includes Lafayette Square.