Rhi, Rhia, Ann, Annie.
Famous people named Rhiannon:
Actresses Rhiannon Wryn, Rhiannon Drake, and Rhiannon Fish; novelist Rhiannon Lassiter; poet Rhiannon McGavin; musician Rhiannon Giddens.
Your little Rhiannon will have a built-in theme song: "Rhiannon" by Fleetwood Mac.
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