Dáin

Dáin or Dain can refer to:


 * In Norse mythology:
 * Dáinn (Norse dwarf) or Dáin, a dwarf
 * Dáinn, one of the four stags of Yggdrasill
 * Dáinn, an elf who introduced the runes to his race according to Hávamál
 * Dáin II Ironfoot, dwarf-king from J. R. R. Tolkien's Middle-earth legendarium
 * Dain (unit), an obsolete unit of measurement in Myanmar equalling ca 3.9 kilometres; see also Bamboo (unit)
 * Dain or Dayan (witch), a type of witch in Indian folklore