In Greek mythology, Oeneus was a Calydonian king. He introduced wine-making to Aetolia, which he learned from Dionysus and the first who received a vine-plant from the same god.

Calydon was a Greek city in ancient Aetolia, situated on the west bank of the river Evenus, 7.5 Roman miles from the sea. Its name is most famous today for the Calydonian boar that had to be overcome by heroes of the Olympian age.