Krzysztof Jan Janik (pronounced ['k???t?f 'janik]; born 11 June 1950 in Kielce) is a Polish left-wing politician.
He is a member of the Democratic Left Alliance and from 6 March 2004 to 18 December 2004 was the leader of this party.
He was Ministers of Internal Affairs and Administration from 2001 to 2004 when he resigned.
He was also a member of the parliament from 1993 to 2005.