Jotunheim is a planet/realm featured in the Marvel Cinematic Universe. It makes its debut appearance in Thor.
Jotunheim is one of the Nine Realms in the Earth-199999 universe. Loki was born on the planet during the Asgard-Jotunheim War. After the War, Odin took the Casket of Ancient Winters while also adopting Loki. Laufey ruled the planet until his death at the hands of his son. .