The Kota Kinabalu District (Malay: Daerah Kota Kinabalu) 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 Kota Kinabalu City.
According to the 2020 census, the population of the district was 500,421. The main ethnic groups were the Chinese (20%), Kadazan-Dusun (15%), Bajaus (16%), Malays (8%) and Muruts (6%). As in most other parts of Sabah, there was also a significant number of illegal immigrants from the southern Philippines - mainly from the Sulu Archipelago and Mindanao - many of whom are not included in the population statistics.