Omahu is a village in the Hastings District and Hawke's Bay Region of New Zealand's North Island. It is located on State Highway 50, north-west of Hastings on the north bank of the Ngaruroro River.^[1]

The New Zealand Ministry for Culture and Heritage gives a translation of "the place where Mahu ran out of food" for Ōmahu.^[2]

A missionary site was established at Omahu in the early 19th century.^[3]

Omahu was inundated by flooding during Cyclone Gabrielle in 2023 after the Ngaruroro River burst its banks, destroying dozens of houses.^[4]

The area has two Ngāti Kahungunu marae. Omāhu Marae is a meeting place for Ngāi Te Ūpokoiri, Ngāti Hinemanu, Ngāti Honomōkai and Ngāti Mahuika; it includes the Kahukuranui meeting house. Te Āwhina Marae is a meeting place for Te Ūpokoiri, Ngāti Hinemanu, Ngāti Mahuika; its meeting house has been demolished.^[5][6]

In October 2020, the Government committed $6,020,910 from the Provincial Growth Fund to upgrade a group of 18 marae, including Omāhu Marae. The funding was expected to create 39 jobs.^[7]

Omahu School is a co-educational state primary school,^[8] with a roll of 23 as of February 2024.^[9][10]