Ján Langoš (2 August 1946, in Banská Bystrica – 15 June 2006, in Drienovec) was a Slovak politician associated with the Democratic Party.
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 finding documentations of crimes of several influential people and trying to open these to the public, he died in a suspicious car accident.
The Foundation was established by his wife, Gabriela Langošová and his two daughters, Nina and Bipula.