Port Gamble Tribal Community is a census-designated place (CDP) corresponding to the Port Gamble S'Klallam Reservation in Kitsap County, Washington, United States. As of the 2020 census, Port Gamble Tribal Community had a population of 1,010.
The tribal community is in northern Kitsap County, on the east side of Port Gamble, an embayment of Hood Canal. It includes the unincorporated community of Little Boston. Directly across the bay to the west is the unincorporated community and historic district of Port Gamble. The tribal community is northwest of Kingston and north of Bainbridge Island.
According to the United States Census Bureau, the Port Gamble Tribal Community CDP has a total area of , of which are land and , or 13.21%, are water.