(Ἄρδυς).

1. King of Lydia, succeeded his father Gyges, and reigned from B. C. 680 to 631. He took Priene and made war against Miletus. During his reign the Cimmerians, who had been driven out of their abodes by the Nomad Scythians, took Sardis, with the exception of the citadel. (Hdt. 1.15, 16; Paus. 4.24.1.)