Wagner may refer to more than one place in the United States:

• Wagner, South Dakota
• Wagner, Wisconsin

Wagner may refer to more than one person:

• Richard Wagner, German composer

• Cosima Wagner, daughter of Franz Liszt and wife of Richard Wagner
• Heinrich Leopold Wagner, dramatist and author
• John Peter "Honus" Wagner, U.S. baseball player
• Lindsay Wagner, U.S. actor
• Otto Wagner, Austrian architect
• Robert Wagner, U.S. actor
• Robert Ferdinand Wagner (1877-1953), U.S. Senator (D-NY)
• Robert Ferdinand Wagner, Jr. (1910-1991), U.S. politician and mayor of New York City
• Robert Heinrich Wagner, Nazi Gauleiter and Reich Governor of Alsace
• Siegfried Wagner, German composer (son of Richard Wagner)
• Warren H. Wagner, U.S. botanist
• Winifred Wagner, British-born wife of Siegfried Wagner and friend of Adolf Hitler

Wagner may also refer to:

• Wagner , a 1983 mini-series about the life of Richard Wagner, see IMDb entry for Wagner
• Wagner Graduate School of Public Service, a professional school at New York University
• Wagner, a character in Marlowe's play Doctor Faustus, and Gounod's opera Faust