Cameron Corner is the point in the outback of eastern Australia where the boundary lines of the states of Queensland, South Australia, and New South Wales meet. Located about 1,400 kilometres (870 mi) west-southwest of Brisbane, Queensland, this corner is named for the surveyor, John Brewer Cameron, from the New South Wales Lands Department, who spent two years during 1880 - 82 marking the border between New South Wales and Queensland. Mr. Cameron erected a post there in September 1880 to mark its intersection with the border of South Australia. He placed a wooden marker every mile (1.6 km) eastwards along the interstate boundary.

This general area, which includes Sturt Stony Desert in the Lake Eyre Basin, was first explored by Captain Charles Sturt, who in 1844 went in search of a supposed inland sea in the center of Australia.

According to the Brisbane Courier Mail newspaper, the sole permanent residents are Fenn and Cheryl Miller who operate the Cameron Corner Store and a golf course near there. Apparently, it "is a Queensland business with a New South Wales postal code and a South Australian telephone number." The noted Dingo Fence passes through Cameron Corner along the New South Wales border.

New Year's Eve occurs three times a year in Cameron Corner (also in Poeppel Corner and Surveyor Generals Corner), because it's in the corner of three time zones.