Greatorex was an electoral division of the Legislative Assembly in Australia's Northern Territory. It was first created in 1990, replacing the abolished electorate of Sadadeen, and was named after , the last President of the Legislative Council. Greatorex was a mostly urban electorate, covering an area of 76 km², and encompassing the Alice Springs suburbs of Sadadeen and . There were 4,606 people enrolled in the electorate as of August 2012. Greatorex was abolished at the 2016 general election, with its constituents divided between Araluen, Braitling and Namatjira.