Édouard-Léon Scott de Martinville ([e.dwaʁ.le.ɔ̃ skɔt də maʁ.tɛ̃.vil]; 25 April 1817 – 26 April 1879) was a French printer, bookseller and inventor.
He invented the earliest known sound recording device, the phonautograph, which was patented in France on 25 March 1857. He died on April 26, 1879 without recognition.