Hagen Rether (born October 8, 1969 in Bucharest) is a Romanian-born German political cabaret artist and musician.
The most remarkable features in his performance are usually the presence and use of a grand piano.
He was a frequent contributor to the German Kabarett TV show Scheibenwischer.
Among the topics Rether relates to are not only federal, state and international politics, but also religion, media, consumerism and globalization.