Philon (gr. Φίλων), a native of Aeniania in Thessaly (today in Phtiotis prefecture), was an officer of the Greek mercenaries in the service of Alexander, which had been settled by that monarch in the upper provinces of Asia. After the death of Alexander these troops, actuated by a common desire to return to their native country, abandoned the colonies in which they had been settled, and assembling to the number of 20,000 foot and 3000 horse, chose Philon to be their leader. They were, however, defeated by Python, who was sent against them by the regent Perdiccas ; and the remainder submitted to him on favourable terms, but were afterwards barbarously massacred by the Macedonians in pursuance of the express orders of Perdiccas (Diod. xviii. 7). The fate of Philon himself is not mentioned.