Wahiawā is a census-designated place (CDP) located in Honolulu County on the island of Oahu, Hawaii, in the United States. It is situated within the Wahiawā District on the plateau, often referred to as the "central valley," which lies between the two volcanic mountains that bookend the island.
The name Wahiawā translates from Hawaiian as "place of the wa people." According to the 2020 census, the population of the area was 18,658.