Ōtāhuhu is a suburb of Auckland, New Zealand, located 13 kilometres southeast of the CBD on a narrow isthmus between an arm of the Manukau Harbour to the west and the Tamaki River estuary to the east.
The name of the suburb is derived from the Māori-language name of the volcanic cone known as Ōtāhuhu (Mount Richmond).
According to the 2018 New Zealand census, Ōtāhuhu had a population of 15,165 people and 3,921 households.
Otahuhu, along with its neighbouring suburbs Favona, Mangere East, Mt Wellington, Penrose, and Westfield, forms an industrial conglomerate region that covers most of the Mangere Inlet.
Local primary schools are Otahuhu School, Fairburn School, and St Joseph's School. Otahuhu College, McAuley High School, and King's College are local secondary schools.