Steilacoom may refer to:
People Steilacoom people, an historical Coast Salish tribe who lived near the Puget Sound Steilacoom Tribe of Indians, a contemporary heritage group, unrecognized as a tribe
Places Fort Steilacoom, a former US Army outpost near Lake Steilacoom Fort Steilacoom Park, the largest park in Lakewood, Washington Lake Steilacoom, a lake in Pierce County, Washington, approximately 2.5 miles southwest of Tacoma, Washington Steilacoom Creek, an older name for Chambers Creek, in Washington State Steilacoom, Washington, a town in Pierce County, Washington Colloquially, in Washington State, "Steilacoom" is also used to refer to Western State Hospital, although the hospital is actually in the neighboring city of Lakewood, Washington