Achaemenes (Haxāmaniš) was the satrap of Egypt from 484 BC until his death in 460 BC, and a member of the Achaemenid dynasty.
According to Herodotus, he was a son of Persian king Darius I by his wife Atossa, and full brother of Xerxes I. Ctesias, who wrongly calls him Achaemenides, states that he was a son of Xerxes, rather than his brother.
After the first rebellion of Egypt, he was put in charge of the country by king Xerxes. He commanded the Persian fleet at Salamis Island (480 BC), and was defeated and slain by Inarus, the leader of the second rebellion of Egypt, during the Battle of Pampremis (460/459 BC).