Leggett is a census-designated place in Mendocino County, California, United States. It is located on the South Fork of the Eel River, 21 miles by road northwest of Laytonville, at an elevation of 984 ft. It is home to some of the largest trees in the world. The nearby Smithe Redwoods State Natural Reserve and Standish-Hickey State Recreation Area are noted for their forests of coastal redwoods. The population of Leggett was 77 at the 2020 census, down from 122 at the 2010 census.