Avalon is a beachside suburb in metropolitan Sydney, Australia. It is located in Pittwater Local Government Area, and is about 35 km north east of downtown Sydney. Avalon Beach is generally regarded as an excellent surfing beach. Avalon also has a small golf course. It has a laid-back village atmosphere, away from the faster pace of Sydney's central business district, with cafes, book stores, and a cinema.

Avalon gained notoriety in the late 1990s after an episode of the American television show, Baywatch, was shot at the suburb's eponymously titled beach. Producers of the show, seeking to relocate from their Californian base due to cost constraints, proposed a full relocation to Avalon. However, following complaints from residents (supported by former world surfing champion and local property owner Kelly Slater), the series moved instead to Hawaii.