Mercury, the travelling god, with his hat and staff and cloak, is easily compared to Odin, the god with the wide-brimmed hat, blue cloak, and staff or spear. Both seem to be able to travel through all the worlds, both are connected to the dead, and both are tricky to deal with. Both rely on their cleverness to get them out of sticky situations.
Julius Caesar wrote that the Gauls believed they were descended from Dis Pater. In his writings, he did not give the local names for his deities, substituting ones his readers would recognize. (This was the interpretatio romana, giving foreign deities Roman names and attributes.)