The Ranau District is an administrative district in the Malaysian state of Sabah, part of the West Coast Division which includes the districts of Kota Belud, Kota Kinabalu, Papar, Penampang, Putatan, Ranau and Tuaran. The capital of the district is in Ranau Town. The landlocked district bordering the Sandakan Division to the east until it meets the Interior Division border. Ranau sits 108 km east of Kota Kinabalu and 227 km west of Sandakan. As of the 2010 Census, the population of the district was 94,092, an almost entirely Dusun ethnic community.
Ranau is noted for its hilly geographical structure and is the largest producer of highland vegetables in the state of Sabah. Tourism and highland agriculture are the major industries, as the district is at 1,176 m above sea level. Its many tourist destinations attracted half a million tourists in 2009. These include Mount Kinabalu, Kinabalu Park, Poring Hot Springs, Kundasang War Memorial, Death March Trail, Mesilau, and Sabah Tea Garden.