Kahuku (Hawaiian pronunciation: [kəˈhuku]) is a census-designated place (CDP) in Honolulu, Hawaii, United States.

[4] This community is located northwest from Laie and east from Kuilima and Kawela Bay along Kamehameha Highway (Route 83).

The total area is 57.46% water, the Pacific Ocean lying off the coast in the census tract.

Out of the total population, 17.4% of those under the age of 18 and 17.7% of those 65 and older were living below the poverty line.

In the mid-1970s a popular television game show, The Diamond Head Game, was held on the grounds of Del Webb's Kuilima Hotel (today the Turtle Bay Resort), located just to the west.

At the end of each show the announcer would say, "If you plan to be in Hawaii, send a self-addressed, stamped envelope to the Diamond Head Game, Kahuku, Oahu 96731."

[10][11] Places of interest in the area include beaches, hiking, fishing, art galleries, and several shrimp trucks in the vicinity.

Kahuku High School in this small, rural, coastal town on the North Shore of Oahu has produced many highly-regarded American football players.