Maslin Beach is a southern coastal suburb of Adelaide, South Australia. It is located in the City of Onkaparinga. The name refers to the town of Maslin Beach, the beach after which it was named and the suburb which contains both. In this article, the name refers to the suburb, unless stated otherwise. Red Ochre Cove lies south of Ochre Point, which separates Maslin Beach from Moana Beach to the north.