Sandyville is an unincorporated community in northern Sandy Township, Tuscarawas County, Ohio, United States. Although it is unincorporated, it has a post office, with the ZIP code of 44671. It lies along State Route 800 between Canton and New Philadelphia. Among the notable residents of Sandyville was Graydon Evans, a World War II test pilot who was killed in the crash of an experimental airplane in 1943.