Jouanneau

Jouanneau is a French surname. It is a patronymic surname, derived from the given name "Jean," the French form of John. "Jouanneau" is a diminutive or hypocoristic form of "Jean," indicating a relationship to someone named Jean, such as "son of Jean" or "little Jean." The suffix "-eau" is a common diminutive ending in French surnames. The surname is found primarily in France.