The Leyak is an enemy that appears in Final Fantasy XIII.
The Leyak can summon Rangdas to its side to aid it during battle.
Leyak are cannibalistic humans who practice black magic in Balinese mythology. Led by their mistress, Rangda, they assume the form of regular people during the day, but at night, they detach their heads from their bodies and drag along their entrails as they search for women who have recently given birth so they can suck blood from newborn children.
- The Pulsian lettering on the Leyak's body reads, "summoner."