Eugen Weidmann was a German criminal and serial killer who was executed by guillotine in France in June 1939, the last public execution in France.

A guillotine is an apparatus designed for effectively carrying out executions by beheading. The device consists of a tall, upright frame with a weighted and angled blade suspended at the top. The condemned person is secured with a pillory at the bottom of the frame, holding the position of the neck directly below the blade. The blade is then released, swiftly and forcefully decapitating the victim with a single, clean pass; the head falls into a basket or other receptacle below.