Ján Langoš (2 August 1946 in Banská Bystrica – 15 June 2006 in Drienovec) was a Slovak politician associated with the Slovakia Democratic Party. He was one of the key dissidents during the era of Communist Czechoslovakia. He served as a minister at Department of Home Affairs (1990–1992) of former Czech and Slovak Federative Republic, appointed by president Václav Havel. After the dissolution of Czechoslovakia he was a member of Parliament and established the Democratic Party. After many years of conviction he succeeded in establishing the National Memory Institute. After finding documentations