Willy Birgel, born Wilhelm Maria Birgel, was a German theatre and film actor.

Der Fall Deruga is a novel by Ricarda Huch first published in German in 1917 about a physician charged with killing his ex-wife. An early courtroom drama, it depicts a trial by jury in which the defendant is reluctant, if not unwilling, to talk about the crime he has allegedly committed. In 1938 the novel was turned into a film of the same title.