Rianna \ri(an)-na\ as a girl's name is a variant of Rhiannon (Welsh), Riane (Irish) and Ryan (Irish, Gaelic), and the meaning of Rianna is "great queen, or goddess; king".

The baby name Rianna sounds like Reanna, Rianne, Riana, Rhianna, Rionna, Roanna, Ranna, Ryanna and Riann. Other similar baby names are Lianna, Cianna, Dianna, Gianna, Jianna, Kianna, Sianna, Tianna and Vianna.