Rhiannon (disambiguation)

Rhiannon is a queen in Welsh mythology.

Rhiannon may also refer to:

• Rhiannon (given name), a Welsh given name
• "Rhiannon" (song), a 1975 Fleetwood Mac song
• Rhiannon: Curse of the Four Branches, a 2008 video adventure game
• 16912 Rhiannon, an asteroid discovered in 1998