Mantarur is a hilly area in the southwest of the Northern Territory, Australia. It forms the southeastern end of the Olia Chain of mountains. This outcrop includes Butler's Dome (; 1102 metres above sea level). The granite escarpment called Foster's Cliff is nearby to the east. Mantarur is located about southwest of Kata Tjuṯa. It is on Pitjantjatjara land, part of the Petermann Aboriginal Land Trust. A family outstation was established here in the 1980s, at a rockhole in the western slopes. It has since been abandoned.