Pūpūkea is a community and census-designated place (CDP) in the Koolauloa District on the island of , City & County of Honolulu, Hawaii, United States. In Hawaiian, pūpūkea means "white shell". As of the 2010 Census, the CDP had a population of 4,551. The Koolauloa District ends at Waimea Bay, with the Waialua District extending south and westward.
Pūpūkea is a popular area on Oahu's North Shore for living and for visiting. The best known surfing sites of Velzyland, Sunset (at Sunset Beach Park), Kammieland, Pūpūkea, Ehukai, Pipeline (these latter two off adjacent Ehukai Beach Park and Banzai Beach) and lesser breaks are arrayed off this shore. Popular diving areas known as Three Tables and Sharks Cove are located at Pūpūkea Beach Park. At the southwest end of Pūpūkea is Waimea Bay, with one of the most popular beaches on the island forming the shore at Waimea Beach Park.
Popular residential areas here include the beach lots at Sunset Beach and the uplands of Pūpūkea. The biggest drawback to living in this part of the island is the considerable driving distance to Honolulu.