What is the name of the 3-headed dog in mythology?

Answer by  llama (23)

The name of the mythical three-headed dog is Cerberus. This mythical dog is from both Greek and Roman mythology. It is not the same name as the dog in Harry Potter.

Answer by  Isli (145)

I assume you mean Cerberus of Greek and Roman Mythology. He was the three-headed doggy guardian of the underworld. He guards the Gates of Hades to keep those who have entered from escaping. Hercules once was given the task of capturing him as one of his 12 labors.