Answer:
Fenrir
Explanation:
I assume you are meaning the son of Loki, 'Fenrir or Fenrisúlfr, also referred to as Hróðvitnir and Vánagandr, or Vanargand, is a wolf in Norse mythology. Fenrir, together with Hel and the World Serpent, is a child of Loki and giantess Angrboða.'
He is the most known wolf in viking mythology.
