Clark County Historical Museum, Historical museum in downtown Vancouver, United States.

The Clark County Historical Museum occupies a 1909 Carnegie library in Vancouver, Washington, operated by the Clark County Historical Society, founded in 1917. It opened in the old library building on May 24, 1964, with Joe Pagel as first director. Displays include rotating exhibits of local interest and a semi-permanent Native American craft exhibit.

The building was constructed in 1909 as a Carnegie library. The Clark County Historical Society, established in 1917, opened its museum there on May 24, 1964, with Joe Pagel as the first director. The society operates the museum in partnership with Clark County and the City of Vancouver.

The museum hosts changing exhibitions and local art events that help visitors understand how people in this region lived and shaped their communities. These programs make history feel connected to daily life today.

The museum sits in the downtown area and is easily reached by car or public transportation. The building is fully accessible for people with limited mobility.

Since 2010 the museum has held its Harvest Fun Day at the 78th Street Heritage Farm in Hazel Dell, Clark County's former Poor Farm, on the fourth Saturday of September, with scarecrow making, pumpkin painting and corn-shucking contests. In 2010 the museum also became home to The Brautigan Library, a permanent collection of unpublished manuscripts sent in from around the world in the early 1990s, inspired by Richard Brautigan's 1971 book The Abortion.