What is the name of Thor's hammer in Nordic mythology?
Thor's hammer didn't have a name, it's just Thor's hammer.
In Nordic mythology, Mjölnir is the hammer of Thor, the god of thunder and lightning. The hammer was forged by dwarfs named Sindri and Brokk. The meaning of the word Mjölnir is usually translated as "the one who crushes". Another theory combines this name with lightning.