Pierre Marie Arthur Morelet was a French naturalist, born in Lays, Doubs. He was a member of the Commission to Algeria, primarily as a natural artist, drawing any natural findings.
He had a particular interest in molluscs, particularly the molluscan species of Africa, and published many works on the topic.
Morelet married Noémie de Folin, sister of Léopold de Folin. Morelet died of natural causes in 1892, in Dijon.