Great queen or divine queen
Derived from the Old Welsh name Rigantona, it is most famously associated with the Celtic goddess of fertility and horses. In Welsh mythology, she is a central figure in the Mabinogion, known for her intelligence and patience.
Fewer than 5 girls were named Rhiannan in 2025.
US births per 5-year period, 1990–present (SSA data).
A major figure in Welsh mythology and the Mabinogion · The Mabinogion
A hit song by the rock band Fleetwood Mac, often associated with the name's popularity
