Marcel \m(a)-rcel, mar-cel\ as a boy's name is pronounced mar-SELL. It is of French origin. Variant of Marcellus (Latin) "little warrior", from Marcus. The source of these names is Mars, the Roman god of war. Marcelo (mar-SAY-loh) is a Spanish form, Marceau (mar-SOH) is French. Marcelino and Marciano are Italian forms. French mime, Marcel Marceau, combined two variants of this name. Author Marcel Proust; football player Marcellus Wiley.