Decatur commonly refers to: Decatur, Alabama, the county seat of Morgan County Decatur metropolitan area, Alabama, the largest metro area with the name Decatur Decatur, Illinois, the county seat of Macon County and largest city with the name Decatur Lake Decatur, a reservoir in the city
Decatur may also refer to a number of places, streets, military establishments, schools, and others mostly named after Stephen Decatur:
Places Decatur, Arkansas, a city Decatur, Georgia, the county seat of DeKalb County Decatur, Indiana, the county seat of Adams County Decatur City, Iowa, a city in Decatur County Decatur, Kentucky, an unincorporated community in Russell County Decatur, Michigan, a village Decatur, Mississippi, the county seat of Newton County Decatur, Missouri, a ghost town Decatur, Nebraska, a village Decatur, New York, a town Decatur, Ohio, an unincorporated community Decatur, Tennessee, the county seat of Meigs County Decatur, Texas, the county seat of Wise County Decatur, Washington, an unincorporated community Decatur, Wisconsin, a town Decatur County (disambiguation) Decatur Township (disambiguation) Decatur Island, one of the San Juan Islands in Washington state
Transportation Decatur Boulevard, Las Vegas, Nevada, a north–south thoroughfare Decatur Highway, U.S. Route 31 in Alabama between Decatur and Birmingham Decatur Street (disambiguation) Decatur (MARTA station), a railroad station in Decatur, Georgia
Military uses USS Decatur, several ships of the U.S. Navy Decatur (1813 ship), an American privateer of the War of 1812 Fort Decatur, a fort in New York during the War of 1812
Other uses Decatur (name), a list of people with either the surname or given name 34351 Decatur, an asteroid Decatur High School (disambiguation) Arizona Charlie's Decatur, a casino hotel in Las Vegas "Decatur Psalm", a song from the 1996 album ATLiens by Outkast "Decatur", a song from the 2023 album Since I Have a Lover by 6lack "Decatur", a song from the 1992 album Headsparks by Seam "Decatur, or, Round of Applause for Your Step Mother!", a song from the 2005 album Illinois by Sufjan Stevens
See also Decatur Subdivision, a former railroad line in Illinois and Indiana