Jim Bohlen (July 4, 1926 – July 5, 2010) was an American engineer who worked on the Atlas ICBM missile program and later emigrated to Canada after becoming disillusioned with the US government's nuclear policy during the Cold War. He became one of the founders of Greenpeace. Bohlen ran for the Greens federally in 1988. Some credit friction between him and long-time enemy Paul Watson for Watson's defection to the NDP during that campaign.