Bungandidj or Buandig is an extinct language of Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, once spoken by the Buandig

Buandig

The Buandig people are Indigenous Australians from the Mount Gambier region in western Victoria and south-eastern South Australia.-Traditional Lands:...

 people, Indigenous Australians from the Mount Gambier

Mount Gambier, South Australia

Mount Gambier is the largest regional city in South Australia located approximately 450 kilometres south of the capital Adelaide and just 17 kilometres from the Victorian border....

 region in present-day western Victoria and south-eastern South Australia

South Australia

South Australia is a state of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories.South Australia shares borders with all of the mainland...

.

According to Christina Smith

Christina Smith (teacher and missionary)

Christina Smith was a teacher and Christian missionary who documented the lives, customs, legends, and language of the Buandig Indigenous Australians from the Mount Gambier region in western Victoria and south-eastern South Australia....

and her book on the Buandig people, the Buandig called their language Drualat-ngolonung (speech of man), or Booandik-ngolo (speech of the Booandik)

Variants of the name are Bungandaitj, Bungandaetch, Bunga(n)daetcha, Bungandity, Bungandit, Buganditch, Bungaditj, Pungantitj, Pungatitj, Booganitch, Buanditj, Buandik, Booandik, Boandiks, Bangandidj, Bungandidjk, Pungandik, Bak-on-date, Barconedeet, Booandik-ngolo, Borandikngolo, Bunganditjngolo, Burhwundeirtch.