Black ring may refer to:
a ring with a black gemstone black ring, a 5-dimensional solution, see higher-dimensional Einstein gravity Black-ringed white-eye Tomato black ring virus the Black Ring, a magic ring from Conan the Adventurer Black power ring of the Black Lantern Corps the rings of power of the Nazgûl a black ring worn on the right middle finger as a symbol of the asexual community
See also Horrors of the Black Ring