Jacques Gamelin (October 3, 1738 – October 12, 1803) was an artist born in Carcassonne, France, the son of a successful merchant.
After receiving an education from the Jesuits, he went into the service of Nicolas Joseph de Marcassus, baron de Puymaurin (1718–1791), a wealthy industrialist of Toulouse, in order to learn the ways of business.
Puymaurin quickly saw that his young assistant had little talent or interest in business but showed great promise as an artist.
Gamelin later went to Rome with Puymaurin's financial assistance to study under Jacques-Louis David and Joseph-Marie Vien and eventually became a painter to Pope Clement XIV.