Deona \de(o)-na\ as a girl's name is a variant of Deanna (Old English), and the meaning of Deona is "valley, church leader". The baby name Deona sounds like Deena, Deonna, Deana, Dena, Denna, Diona, Deon, Dona and Teona. Other similar baby names are Deora, Devona, Demona, Keona and Leona.