Viggo Olfert Fischer Kampmann (Danish pronunciation: [ˈʋiɡo ˈʌlfɐd ˈfiɕɐ ˈkɑmpmaˀn]) (21 July 1910 – 3 June 1976) was the leader of the Danish Social Democrats and Prime Minister of Denmark from 19 February 1960 until 3 September 1962. His cabinet before the 1960 election was called the Cabinet of Viggo Kampmann I and the cabinet he formed after that election was called the Cabinet of Viggo Kampmann II.