Casimir Dunin Markievicz (Polish: Kazimierz Dunin-Markiewicz [kaˈʑimjɛʐ ˈduɲin marˈkʲɛvit͡ʂ]; 15 March 1874 – 2 December 1932), known as Count Markievicz, was a Polish playwright, theatre director, and painter, and the husband of the Irish revolutionary Constance Markievicz.