In Norse mythology, the god of thunder is Thor. He wields the powerful hammer Mjölnir and is known for his strength and bravery in battles against giants and other foes. Thor embodies the values of protection and heroism, often standing as a guardian for gods and humans alike. He is frequently depicted in myths as a fierce warrior, defending the realm of Asgard. His significant role in mythology highlights themes of courage and loyalty to family and kin.