The Gunavidji, also written Kunibidji or referred to as the Ndjébbana, are an indigenous Australian people of Arnhem Land in the Northern Territory.
The Gunavidji speak Ndjébbana, which is one of the Maningrida languages.
The Gunavidji's lands extended over some 500 square miles (1,300 km2) in and around the valley along the Liverpool River in and as fas at the point where the Tomkinson River flows into the mangrove swamps. Their main base is at Maningrida township.
They do not practice circumcision.