The One Ring is a central plot element in J. R. R. Tolkien's The Lord of the Rings.

One ring may also refer to:

• the missed call telephone scam, a phone fraud
• TheOneRing.net, a fandom website for Middle-Earth related topics
• The One Ring Roleplaying Game, a tabletop role-playing game
• The One Ring (Legends), a module for the play-by-mail game

See also

• All pages with titles containing One ring
• Ring 1 (disambiguation)
• Ring (disambiguation)
• The Ring (disambiguation)
• Power ring (disambiguation)
• TOR (disambiguation)
• Monocyclic aromatic hydrocarbon, 1-ringed aromatic hydrocarbons
• Heterocyclic compounds, 1-ring