Hauula is a census-designated place and rural community in the Koolauloa District on the island of , City & County of Honolulu. In Hawaiian, hauula means "red hau" (hau is a type of tree: Hibiscus tiliaceus). There is a small commercial center. As of the 2010 Census, the CDP population was 4,148.
A fringing reef extends off the shoreline. There are several beaches and beach parks in Hauula, including Hauula Beach Park, Aukai Beach Park, Kākela Beach Park, and Mahakea Beach. Sugarcane was once grown along the narrow coastal plain inland from the highway.
The U.S. postal code for Hauula is 96717.
There is a two-bay fire station located on Kamehameha Highway.