Jean Elias Benjamin Valz (May 27, 1787 – April 22, 1867) was a French astronomer. He was born in Nîmes and trained as an engineer. He was the son of politician Jean Valz and the grandson of the doctor, meteorologist and naturalist (1708–1790). He became interested in astronomy and comets in particular, observing the return of what would later be named Comet Encke. He later made a very complete calculation of the orbital elements of another comet, for which he won recognition.