Glenburnie is a locality in the Australian state of South Australia located in the state's southeast adjoining the border with Victoria about 385 kilometres (239 mi) south-east of the state capital of Adelaide and about 9.3 kilometres (5.8 mi) east of the municipal seat of Mount Gambier.
Its boundaries were created in 1999 for the "long established name" which derives from an early homestead in the area. Its boundaries align in part in the north with the Glenelg Highway, in part to the south with both the Princes Highway and the Mount Gambier-Heywood railway line, and with the state border with Victoria to the east.
The Mount Gambier Racecourse and the Borderline Speedway are located in Glenburnie.
Glenburnie is located within the federal Division of Barker, the state electoral district of Mount Gambier and the local government area of the District Council of Grant.