Acadia \a-ca-dia\ as a girl's name is of Algonquian Wakashian origin, and the meaning of Acadia is "place of plenty". Place name: the French settlers of Nova Scotia called it Acadia after the name of a river there. Baby names that sound like Acadia are Agatha, Agatta, Agata, Egidia and Aegidia. Other similar baby names are Acacia, Amadia and Arcadia.