Larrabee State Park, State park in Whatcom County, United States.

Larrabee State Park is a 2,748-acre state park on Samish Bay, on the western side of Chuckanut Mountain about 6 miles south of Bellingham in Whatcom County. It has 8,100 feet of saltwater shoreline, two mountain lakes, Fragrance Lake and Lost Lake, and trails climbing 1,940 feet up Chuckanut Mountain.

Charles Larrabee and his wife Frances donated waterfront land in 1915 to establish Washington's first state park. The area was originally called Chuckanut State Park before being renamed.

The park hosts educational programs that help visitors understand local ecosystems and conservation practices. Seasonal activities and guided experiences encourage people to connect with the natural world around them.

The park provides campsites with various facilities ranging from basic to equipped options available during warmer months. Visitors should plan ahead as popular periods fill quickly.

Clayton Beach, part of the 1937 Larrabee family donation, was reached for years by an informal path over a blind-curve railroad track; that route closed for several years. In 2023 a 1.0-mile official trail opened from the Lost Lake Trailhead, funded in part by $3.0 million from the state Recreation and Conservation Office, with a fenced pedestrian bridge over the tracks. At low tide the beach runs a mile, with sandstone formations and tidepools facing Samish Bay and the San Juan Islands.