Echidna may refer to:
- The boss from Final Fantasy.
- The boss from Final Fantasy III.
- The enemy from Final Fantasy IV.
- The boss from Final Fantasy IV: The After Years.
- The boss from Final Fantasy XIV.
- The enemy from Final Fantasy Legend III.
Echidna was called the "Mother of All Monsters". Echidna was described by Hesiod as a female monster spawned in a cave, who mothered with her mate Typhon. Her face and torso is that of a beautiful woman, sometimes depicted as winged, but always with the body of a serpent. She is also sometimes described as having two serpent's tails. She was said to be the mother of such famous Greek monsters like Cerberus and the Chimera.In the most ancient layers of Greek mythology,