Norse mythology's chief god was odin.
The chief god of Norse mythology is Odin.
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No, he is in fact a Norse god, He is the God of wolves in Norse mythology.
Odin is the Norse god of war.
No, Ares the Greek god of war does not appear in Norse mythology.
Thor was in Norse mythology, not Greek. He was the Norse god of thunder and war.
In mythology Loki is the Norse god of fire, commony mistaken as the Norse god of Mischif thanks to Marvel comics and Son of the Mask, however he is famous for his mischevious ways.
Thor.
Loki.
Odin is the chief god.
There is no official "Supreme God", like Zeus is in Greek mythology. However if one were to give the title of "Supreme God" to a Norse God it would have to be Odin.