Ulrich Hahnen (10 May 1952 in Krefeld – 10 January 2016) was a German politician. He was a member of the Social Democratic Party (SPD). He served as a deputy of the Landtag of North Rhine-Westphalia from 2010 until his death. In 1994, he became a member of the City Council of Krefeld, North Rhine-Westphalia.