James Campbell Refuge consists of over 160 acres of wetland habitat in two separate wetland units near the community of Kahuku on the northeastern shore of Oahu, Hawaii. This wetland refuge is primarily devoted to the recovery of Hawaii's four endemic water birds (Hawaiian stilt, Hawaiian moorhen, Hawaiian coot, and Hawaiian duck). All four birds are listed as endangered species due to their precipitous decline in the 20th century.

Public entry into the refuge is prohibited unless authorized by the refuge manager or participating in scheduled tours by refuge staff personnel. The refuge office is located on Oahu's north shore in Haleiwa at 66-590 Kamehameha Highway.