Jan Paul van Aken (born 1 May 1961) is a German activist for Greenpeace and a politician with the Left Party. He is a member of the Foreign Affairs Committee and the Subcommittee on Disarmament, Arms Control and Non-Proliferation in the German Bundestag. Jan van Aken entered the 17th Bundestag in 2009 after he was listed on the Left electoral lists in Hamburg. Since June 2012 he has been a deputy chairperson of the Left Party. He was one of the eight lead candidates for the Left in the 2013 federal election and was therefore also elected to the 18th Bundestag.