Culburra is a town and locality in the Australian state of South Australia. It is located on the Dukes Highway and Melbourne–Adelaide railway. , about 158 km south-east of the state capital of Adelaide and about 77 km south-east of the municipal seat of Tailem Bend. "Culburra" is an indigenous name meaning "plenty of sand", and the settlement was previously called Dewson before the name was changed in the early 20th century. The boundaries and the name for the locality were gazetted on 24 August 2000. The locality consists of land adjoining the southern boundary of the cadastral unit of the Hundred of Coneybeer and land from the following hundreds – the north-east corner of Colebatch, the south-west corner of Lewis and a portion on its northern boundary of Richards. Culburra is located within the federal division of Barker, the state electoral district of Mackillop and the local government area of the Coorong District Council.