Fitler is an unincorporated community in Issaquena County, Mississippi, United States. Fitler is located on Mississippi Highway 1, approximately six miles west of Onward. Fitler had a post office from about 1901 to 1976. In 2012, a 697.5 lb alligator was taken at a hunting camp near Fitler, setting a new Mississippi weight record. Robert E. Foster, who served in the Mississippi House of Representatives from 1912 to 1931, lived in Fitler.