Power ring or ring of power may refer to:
- Seal (device)#Signet rings
- Ecclesiastical rings
- In fiction:
- In DC Comics' Green Lantern Corps:
- Power ring (DC Comics), a ring which is the source of the super powers of the Green Lantern Corps
- Power Ring (DC supervillains), the alias of several evil counterparts to the Green Lanterns
- In J. R. R. Tolkien's Middle-earth:
- Any of the twenty Rings of Power
- The One Ring, the most powerful of the Rings of Power
- The white gold wedding ring in Stephen Donaldson's The Chronicles of Thomas Covenant, the Unbeliever
- Ring of Gyges, in Plato's The Republic
- Der Ring des Nibelungen (The Ring of the Nibelung)
- Ring of Power, an alternate title for Rock & Rule, an animated film
- Rings (Sonic the Hedgehog), items collected in the Sonic the Hedgehog video games, also called Golden Rings
- In DC Comics' Green Lantern Corps:
Famous quotes containing the words power and/or ring:
“It never was in the power of any man or any community to call the arts into being. They come to serve his actual wants, never to please his fancy.”
—Ralph Waldo Emerson (1803–1882)
“These words dropped into my childish mind as if you should accidentally drop a ring into a deep well. I did not think of them much at the time, but there came a day in my life when the ring was fished up out of the well, good as new.”
—Harriet Beecher Stowe (1811–1896)