The Lernaean Hydra is a creature on ABC's Once Upon a Time. It was one of the monsters that Hercules had to defeat for his twelve labors.
Hercules faced and battled with the Hydra, eventually defeating the beast, completing his second labor.
- The Lernaean Hydra is based on the creature of the same name from Greek Mythology.
- During the fight between Amara and Jafar, Amara conjures a hydra, which is eventually destroyed by Jafar.
- S5, E13: "Labor of Love" (badge)