Dayna \da(y)-na\ as a girl's name is a variant of Dana (Old English), and the meaning of Dayna is "from Denmark". The baby name Dayna sounds like Dagna, Daina, Dayne, Danna, Daena, Dawna, Dayana, Dyna, Dahna, Dwayna and Duayna. Other similar baby names are Dayha, Dayla, Dafna, Daya, Gayna, Jayna, Rayna and Zayna.