This article lists the known kings of Lydia, both legendary and historical. Lydia was an ancient kingdom in western Anatolia during the first millennium BC. It may have originated as a country in the second millennium BC and was possibly called Maeonia at one time, given that Herodotus says the people were called Maeonians before they became known as Lydians. Herodotus and other sources refer to three dynasties: the Maeoniae, Heracleidae (Heraclids) and Mermnadae. The first two are legendary, though later members of the Heraclid dynasty are at least semi-legendary. The Mermnadae are historical.
Maeoniae
The earliest Maeonian or Lydian king mentioned by Herodotus is Manes who was the father of Atys. There was a severe famine during the reign of Atys and half of the citizens, led by Atys' son Tyrrhenus, emigrated to Italy as the Tyrrhenians. Other sources, such as Strabo, name Tmolus and his son Tantalus as kings of the region about the same time, supposedly ruling from the land about Mount Sipylus, but it is asserted that these two were the same people as Manes and Atys, especially as Omphale is a member of both families. Dionysius of Halicarnassus instead puts Cotys as the son of Manes, and as the father of Atys.
The known legendary kings are:
- Manes
- Lydus, son of Atys
Herodotus says that Lydus gave his name to the country and its people.
Mermnadae
Although this dynasty is historical, the dates for it have never been determined with certainty. The traditional dates are derived from Herodotus, who gives some reign-lengths, but these have been questioned by modern scholars on the basis of synchronisms with Assyrian history. The name of the dynasty () may be attested in Lydian transmission as -𐤪𐤷𐤦𐤪𐤫𐤠 mλimna-. Etymologically, it possibly contains the Carian word mno- 'son' or 'descendant', which would then represent an argument for the Carian origin of the Mermnad clan.
- Ardys, aka Ardysus (c.644–c.637 BC; son of Gyges)
- Sadyattes (c.637–c.635 BCE; son of Ardys)
Gyges died in battle c.644 BCE, fighting against the Cimmerians, and was succeeded by Ardys. The most successful king was Alyattes, under whom Lydia reached its peak of power and prosperity. Croesus was defeated by Cyrus the Great at the battles of Pteria and Thymbra. Cyrus annexed Lydia after the Siege of Sardis which ended in early 546 BC, but the fate of Croesus himself is uncertain.