Letchworth is a town in Hertfordshire, England.
Letchworth may also refer to:
Places Letchworth, Arkansas, a place in the United States Letchworth State Park, a state park in New York, United States Letchworth Village, a developmental-disability institution in New York, United States
People with the surname Eileen Letchworth (1922-2003), American actress Elizabeth Baldwin Letchworth (b.1959), American lobbyist William Pryor Letchworth (1823-1910), American businessman
Other uses Letchworth High School, Gainesville, Florida, United States , a number of steamships