Obrad Piljak (Bosnian pronunciation: [ǒbraːt pǐːʎak]); 1933 – 7 April 2013) was a Bosnian politician and former Chairman of the Presidency of Bosnia and Herzegovina, from April 1989 to December 1990. He was the last nominated (non-elected) member of the Communist party of Bosnia and Herzegovina to serve as Presidency chairman, before the first multi-party elections were held in 1990 and Alija Izetbegović replaced him in his post.