Jianna \ji(an)-na\ as a girl's name is a variant of Jiana (American). See for meaning of Jianna.
The baby name Jianna sounds like Gianna, Joanna, Janna, Jinna and Jeanna. Other similar baby names are Lianna, Cianna, Dianna, Kianna, Rianna, Sianna, Tianna and Vianna.