Gustav Schädler (, German: [ˈɡʊstaf ˈʃɛːdlɐ];18 November 1883 – 19 June 1961) was a teacher and politician from Liechtenstein who served as the Prime Minister of Liechtenstein from 1922 to 1928. He previously served as a government councillor in 1922 and in the Landtag of Liechtenstein from 1919 to 1922. Starting his career as a teacher, he gained political prominence as a public speaker before serving in the Landtag of Liechtenstein and then as a government councillor as a member of the Christian Social People's Party (VP). He was a major proponent of Liechtenstein's constitutional revision,