I should clarify — a lot of folks call Aristotle a pagan, but by “pagan” I mean polytheism and the idea that the gods are within a cosmological order that has no inherent order. Aristotle was a monotheist who believed the universe did have an intrinsic order. But his philosophy lacked the cultural context to fully realize the scientific potential of his work. That potential, to be actualized, required Christianity.
Thats a very reasonable definition of Paganism to most people i think. Greek gods certainly fit what i think of as “Pagan”.