Deanne \de(an)-ne\ as a girl's name is a variant of Deanna (Old English), and the meaning of Deanne is "valley, church leader". See also Deandra. The baby name Deanne sounds like Deonne, Deann, Deane, Dyanne, Dianne and Danne. Other similar baby names are Jeanne, Leanne and Reanne. View a list of the 2 names that reference Deanne.