Ulrike Renate Martina Bahr (German pronunciation: [ʊlˈʁiːkə ˈbaːɐ̯]; born 25 April 1964) is a German politician (SPD) and since 2013 MP in the German Bundestag. She belongs to the left party wing of the SPD, the Parliamentary Left (Parlamentarische Linke). Between 2018 and 2019, she was one of the members of the SPD parliamentary group who voted most often against the party line.