Zeus is a god.
Jupiter , also Jove ( Iūpiter [ ˈjuːpɪtɛr ] or Iuppiter [ ˈjʊppɪtɛr ] , gen. Iovis [ ˈjɔwɪs ] ) , is the god of sky and thunder and king of the gods in Ancient Roman religion and mythology . Zeus . His name is cognate with the first element of his Roman equivalent Jupiter .