The Petermann Aboriginal Land Trust is a land trust for a large block of land in the southwest corner of the Northern Territory, Australia. It was created by law in July 1978. The block of land (called Northern Territory Portion 1634) covers an area of . It makes up most of the area of the old Petermann Reserve (1920–1977). The land's traditional owners are mostly Pitjantjatjara, Yankunytjatjara and Luritja people. This includes residents of Kaltukatjara and over 50 family outstations.