Gumbaynggir (also 'Kumbainggar') are an Australian Aboriginal group who traditionally lived in the area contiguous with Coffs Harbour, New South Wales.
Gumbaynggir is classified as one of the two Gumbaynggiric languages of the Pama–Nyungan family. In 1986 the Muurrbay Aboriginal Language and Culture Co-operative was established by Gumbaynggirr elders to revive their language and hand it on. Language classes began in 1997, and by 2010 some several hundred people had some partial grasp of the language.
Muurrbay in Gumbaynggir means the white fig tree and plays an important part in the Gumbaynggir Yuludarla (Gumbaynggir Dreamings.
The Gumbaynggirr made sweets (bush lollies, called jaaning) by rolling tender shoots from the Acacia irrorata in the sap oozing from the tree.
The Gumbaynggirr lands extend over an estimated 2,300 sq. miles covering an area of the Mid North Coast from the Nambucca River to as far north as the Clarence River (Grafton), and eastward to the Pacific coast. Norman Tindale specified its limits as bounded by the lower course of Nymboida River, stating that the territory ran toward Urunga, Coff Harbour, and Bellingen. It included South Grafton and Glenreagh. It took in the coastal strip south from near One Tree Point, Woolgoolga and Nambucca Heads. The thin coastal zone from Coffs Harbour to Evans Head was Yaygir territory.