This name derives from the Celtic name “Rigantona”, meaning “Great Queen”. Rhiannon is a prominent figure in Welsh mythology, mother to the Demetian hero Pryderi and wife to Pwyll. She is probably a reflex of the Celtic great Queen goddess Rigantona and may also be associated with the horse goddess Epona. Rhiannon was the goddess of fertility and the moon. This name recently increases its popularity thanks to Barbadian singer, actress, and fashion designer "Rihanna” (born February 20, 1988).