Oin, Óin or OIN may refer to:

Folklore and fiction

edit
  • Óin, son of Gróin, a Dwarf from J. R. R. Tolkien's writings, companion of Thorin Oakenshield
  • Oin-Oin, a character of Swiss folklore

Other

edit

See also

edit
  • Eoin, an Irish name pronounced O-in