Leggett (formerly, Leggett Valley) is a census-designated place in Mendocino County, California. It is located on the South Fork of the Eel River 17 miles (27 km) northwest of Laytonville, at an elevation of 984 feet (300 m). It is home to some of the largest trees in the world. Nearby Smithe Redwoods State Reserve and the Standish-Hickey State Recreation Area are noted for their forests of Coastal Redwoods. The population was 122 at the 2010 census.
Leggett is served by California's State Route 1, whose northern terminus with U.S. Route 101 is just outside the community.
The town of Leggett includes a single gas station, United States Post Office, K-12 school, a small grocery store, restaurant, full service mechanic (ask a local), fire station and the Drive-Thru Tree.
The Leggett post office opened in 1949.