Ahuimanu or ʻĀhuimanu (Hawaiian pronunciation: [ʔaːhuwiˈmɐnu]) is a census-designated place (CDP) in the City & County of Honolulu, Hawaii, United States, on the island of Oahu.

Ahuimanu is spread out beneath the steep windward pali (cliff face) of the Koolau mountain and separated by a low ridge from Heeia Kea.

[4] Nearby communities include Heeia and Kaneohe to the south along State Route 83 (the Kahekili Highway), and Kahaluu, with which it merges to the north.

According to the United States Census Bureau, the CDP has a total area of 2.7 square miles (7.0 km2), all land.

It is located in the community of Temple Valley, Ahuimanu in the ahupua'a of Kāne'ohe near the Ko'olau mountains on the island of Oahu.