Ariamnes II (in Greek Ἀριάμνης; ruled 280–262 or 230 BC), ruler and king of Cappadocia, succeeded his father Ariarathes II. He was fond of his children, and shared his crown with his son Ariarathes III (262 or 255–220 BC) in his lifetime. He was probably the first to obtain the independence of Cappadocia from the Seleucid Empire.
References
Hazel, John; Who's Who in the Greek World, "Ariamnes II", (1999)