Polymath
It comes from the Greek πολυμαθής, polymathēs, "having learned much" and describes a person who has expertise in a large number of different subjects, but more importantly, they are able to draw on this knowledge to solve problems. Science fiction author Robert Heinlein believed that everyone should attempt to be a polymath and that specialisation was for insects.
Leonardo da Vinci was a polymath and maybe Urban Dictionary author Gumba Gumba is as well
By AKACroatalin