Leopold Wagner (1927, Klagenfurt – 26 September 2008) was an Austrian politician of the Social Democratic Party (SPÖ), serving as governor (Landeshauptmann) of Carinthia from 1974 to 1988. Wagner was governor of Carinthia for three consecutive terms, with an absolute majority in the each time, making him the only Carinthian governor with such a lengthy period of unchallenged rule. Along with his deputies, and , he modernized the state considerably, and was considered a leading figure in its post-World War II politics.