In Greek mythology, Argyra (//; Ancient Greek: Ἀργυρᾶ) was one of the Naiads, a nymph who resided in a well. There was a city in ancient Achaea, also named Argyra, that was the site of a spring. According to legend, the nymph Argyra was in love with a shepherd named Selemnus, but when he aged she no longer loved him. When he died of grief, the goddess Aphrodite changed him into a river. The legend says that a forsaken lover who bathes in this river will forget their pain.