André-Louis Debierne (Paris, 14 July 1874 - 31 August 1949, Paris) was a French chemist and the discoverer of the element
actinium. Debierne, studied at the elite École supérieure de physique et de chimie industrielles de la ville de Paris (ESPCI).
He was a student of Charles Friedel, was a close friend of Pierre and Marie Curie and was associated with their work.