Technically Journey to the West is Chinese mythology, but I love the folksy feeling that those influences bring to the the original Dragonball.
Pokemon also has a lot of references to yokai, kami and Shinto, even though it originated from a fascination with collecting bugs.
And speaking of bugs, Mushishi. There's all sorts of folk mythology that inspires the the creatures Ginko handles, though I don't recall any off the top of my head based off of the more famous myths.