Gianna \gi(an)-na\ as a girl's name is pronounced jee-AHN-ah, JAHN-ah. It is of Italian and Hebrew origin, and the meaning of Gianna is "God is gracious". Feminine form of Gianni and Jane, from John. The name is sometimes used in honor of Saint Gianna Molla who died in 1962 because she had a dangerous pregnancy and preferred to risk her life rather than abort her baby.

Gianna has 8 variant forms: Geonna, Gia, Giana, Ginara, Gianina, Gianella, Giannina and Gionna.

For more information, see also related names Jiana and Johnna.

Baby names that sound like Gianna are Ginna, Jianna and Kianna.