“Big” Jim Tinndahn (born January 27, 1961) is a Danish mobster who was president of the Bandidos Motorcycle Club’s European and Asian chapters until June 2012, when he stepped down and Michael “Kokken” Rosenvold became their new president.
He founded the Bandidos’ first Scandinavian chapter in Copenhagen in late 1992. Since emigrating to Sweden in 1995, he has been arrested on a number of charges, including motorcycle theft and fraud. He was a prominent figure during the Great Nordic Biker War, a conflict between the Bandidos and the Hells Angels in the 1990s, the end of which was marked when he shook hands with Hells Angels Europe president Bent “Blondie” Nielsen on Denmark’s TV 2 in September 1997. He has also made a number of appearances on talk shows and in documentaries.