Truesdale is a surname. Notable people with the surname include:
Amy Truesdale (born 1989), English taekwondo practitioner Dave Truesdale (born 1950), American science fiction editor and literary critic Donald Leroy Truesdale (1906–1993), American Marine Corps soldier awarded the Medal of Honor Frank Truesdale (1884–1943), American baseball player Hiram Truesdale (1860–1897), American jurist from Arizona John C. Truesdale (1921–2011), American lawyer and civil servant Regan Truesdale (born 1963), American basketball player William Truesdale (1851–1935), American railroad executive William Gene Truesdale (c. 1934–1981), American deputy sheriff murdered by Wilbert Lee Evans Yanic Truesdale (born 1970), Canadian actor