Peter Paul Kreuder (18 August 1905 – 28 June 1981) was a German-Austrian pianist, composer and conductor.
Kreuder was born in Aachen, the son of a Kammersänger. He enrolled as a piano student at the Cologne Conservatory in 1910, where he performed his first concert one year later, and at music academies in Munich, Berlin and Hamburg. After World War I he worked as a composer of musical performances at the Hamburg Kammerspiele theatre, at the Munich Staatstheater am Gärtnerplatz, as well as of several Kabarett and revue productions. In the meantime he continued his studies, taking his exams at the Munich Academy of Music in 1924.
In 1925 he was employed as Kapellmeister at the Deutsches Theater München, and conducted theatre ensembles, first in Munich and then in Berlin, where he worked with Max Reinhardt. In 1930 he met with Friedrich Hollaender, whom he assisted arranging the musical score of Josef von Sternberg's film The Blue Angel starring Marlene Dietrich. During the 1930s and 40s he became one of the most sought-after German musical film composers; his credits run to some 150 movies. Several songs, performed by stars like Zarah Leander or Marika Rökk, are popular and covered up to today.