István Stumpf
 István Stumpf (born 5 August 1957) is a Hungarian scholar political scientist and politician. A former member of the ruling Communist Hungarian Socialist Workers' Party he was the last Vice President of National Council of the Patriotic People's Front from 1989 to 1990. He also served as Minister of Prime Minister's Office between 1998 and 2002 in the first cabinet of Viktor Orbán. He is a member of the Constitutional Court of Hungary since July 2010.