Extended spelling of Marian, reinforcing the association of the second element with Ann(e). It also represents a French assimilated form of Mariamne. Marianne is the name used for the symbolic figure of the French Republic.
English and Welsh: patronymic from the Middle English personal name Jon(e) (see John). The surname is especially common in Wales and southern central England. In North America this name has absorbed various cognate and like-sounding surnames from other languages. (For forms, see Hanks and Hodges 1988).