Wahiawa (Hawaiian: Wahiawā, pronounced [wəhijəˈvaː]) is a census-designated place (CDP) in Honolulu County, Hawaii, United States, on the island of Oahu.

It is in the Wahiawā District, on the plateau or "central valley" between the two volcanic mountains that bookend the island.

Outside of the reservoir, the town used to be surrounded by military bases and agricultural fields, but development is making its way up from the increasingly urbanized southern portion of the central plain.

Wahiawā is also home to the United States Navy's Naval Computer and Telecommunications Area Master Station Pacific and the housing community HMR.

[4] Vehicular routes to the North Shore from Wahiawā are Kamehameha Highway (State Rte.

Wheeler and Schofield are reached along Wilikina Drive (Wahiawā Bypass) (State Rte.

750) runs from Wilikina Drive, between Schofield and Wheeler (on the bypass), then southward along the mostly still agricultural western side of the plain to Kunia and Waipahu beyond.

Kaʻala, the highest peak on Oahu (4,003 feet or 1,220 metres), is 5 miles (8 km) west of Wahiawā, overlooking Schofield Barracks.

)[10] In the Honolulu City Council, Wahiawā is part of district 2 (currently represented by Matt Weyer).

[11][12] The Hawaiʻi State Department of Education operates Wahiawā CDP's public schools.