Meaning Of Celtic origin meaing 'nymph, goddess' a variant of the popular Welsh name Rhiannon. Origin of Rhianne Celtic , Irish Popular Middle Names Elizabeth Pronunciation 🔊 Listen Rhianne REE-ANN Similar Names Rhiannon Rihanna Rhian Rhyan Chelsie Reanna Rianna Glad Cortney Emmi Year by Year Popularity of Rhianne