The name Margeaux means Pearl and is of French origin. Margeaux is a name that's been used primarily by parents who are considering baby names for girls.
Margaux/Margeaux are alternate American spellings of the French name, Margot, which itself is a derivative of the name Margaret. Margaux Hemingway, actress. Margeaux, Canadian singer/songwriter, real name: Margo Elaine Simms.