Gaiana \ga(ia)-na\ as a girl's name is a variant of Gaea (Greek), and the meaning of Gaiana is "the earth".

The baby name Gaiana sounds like Giana, Chiana, Gina, Gana, Gayna, Gianna, Ginna, Geina, Geana, Guinna, Gaenna, Gwinna, Kayana, Kiana, Quiana, Keiana and Qiana. Other similar baby names are Galiana, Gaila, Liana, Cariana, Tiana, Ciana, Daina, Diana, Faina, Gaiea, Gaia, Gaetana, Gafna, Galiena, Galianna, Galina, Gavina, Galena, Gleana, Jaina, Jiana, Katana, Kalana, Kariana, Laina, Leiana, Raina, Riana, Siana, Taina, Viana and Zaina.