Kakahai‘a National Wildlife Refuge on the island of Moloka‘i is part of the Maui NWR Complex. It was established in 1976 to permanently protect wetland habitat for endangered waterbirds, primarily Hawaiian stilt and Hawaiian coot, and to provide habitat for wintering migratory wetland birds.

The refuge contains a 15-acre coastal freshwater marsh. This spring-fed pond lies on a narrow plain just above sea level at the foot of volcanic hills. An additional 5.5-acre managed impoundment was constructed in 1983 to provide shallow-water habitat for wading birds. Kamehameha V Highway bisects the southern part of the refuge, allowing access to the coastal portion managed as a park by the County of Maui.