Wagener is a German surname. Notable people with the surname include:
Ana Wagener (born 1962), Spanish actress Carl Wagener (1901–1988), German officer Catherine Wagener (1951–2011), French actress David Douglas Wagener (1792–1860), American politician Dirk Wagener (born 1971), German diplomat and international development official Frank Wagener (born 1952), chairman of the Luxembourg Stock Exchange George Wagener, New York politician Gorden Wagener (born 1968), German car designer Hans Wagener (1931–2021), Dutch field hockey player Hermann Wagener (1815–1889), Prussian jurist Henry Wagener (1891–1979), American farmer and politician Hilde Wagener (1904–1992), German-born actress Jack Wagener (1905–1986), English cricketer Joachim Heinrich Wilhelm Wagener (1782–1861), German banker and patron of the arts Johann Andreas Wagener, American politician Maximilian Wagener (born 1995), German football player Michael Wagener (born 1951), German record producer Niklas Wagener (born 1998), German politician Nora Wagener (born 1989), Luxembourgish writer Otto Wagener (1888–1971), German general Renée Wagener (born 1962), Luxembourgish politician and journalist Richard Wagener (born 1944), American wood engraver Robin Wagener (born 1980), German judge and politician Sigbert Wagener (1919–2004), German Capuchin priest and entomologist Terri Wagener, American playwright and screenwriter Werner Wagener (1894–?), German flying ace