Giana \gi(a)-na\ as a girl's name is a variant of Gianna (Italian, Hebrew) and Johnna (Hebrew), and the meaning of Giana is "God is gracious".

The baby name Giana sounds like Gina, Gaiana, Gana, Ginna, Geana, Jiana, Kiana and Qiana. Other similar baby names are Liana, Tiana, Ciana, Diana, Gilana, Gitana, Riana, Siana and Viana.