The Walter Burley Griffin Incinerator is a heritage-listed former incinerator and now art gallery, artists studios and public recreation area at 2 Small Street, Willoughby, City of Willoughby, Sydney, New South Wales, Australia. It was designed in partnership between Walter Burley Griffin and Eric Nicholls and built from 1933 to 1934 by Reverberatory Incinerator and Engineering Company and Nisson Leonard-Kanevsky. It is also known as Willoughby Municipal Incinerator. The property is owned by the Willoughby City Council. It was added to the New South Wales State Heritage Register on 2 April 1999.

Willoughby is a suburb located on the lower North Shore of Sydney, in the state of New South Wales, Australia 8 kilometres north of the Sydney central business district, in the local government area of the City of Willoughby.