Dieter "Quaster"[1] Hertrampf (born 29 November 1944 in Berlin, Nazi Germany) is a German guitarist and singer.

In 1965, he was one of the founding members of the "Puhdys" with Peter Meyer, Udo Jacob and Harry Jeske.

He got his nickname "Quaster" from his bandmates when he had trouble with The Shadows instrumental "Quartermaster's Store".

[2] Hertrampf began studying music at the Musikschule Friedrichshain and in 1968 joined the groups Gruppen Teisco-Quartett, Die Collins and the Uve Schikora Combo.

[3] After graduating from music school in 1969, he returned to the Puhdys, where he was lead guitarist and one of the singers until the band disbanded in 2016.