Pericleidas (Ancient Greek: Περικλείδας; fl. 5th century BCE) was a man of ancient Sparta -- possibly the proxenos of Athens at Sparta -- who played a role during the Peloponnesian War.
After the 464 BC Sparta earthquake, Pericleidas led a diplomatic mission to Athens to appeal for help putting down the revolt of the Helots against the Spartan aristocracy that the earthquake had unleashed. The Athenian general Cimon agreed to this and sent soldiers, but the Spartans rejected them when they arrived, as the Spartans worried that the Athenians' political leanings might make them too sympathetic to the Helots. This rejection was a precipitating event in the First Peloponnesian War.
