Harpalus, son of Machatas, is an aristocrat of Macedon and boyhood friend of Alexander the Great in the 4th century BCE.
Being lame in a leg, and therefore exempt from military service, Harpalus does not follow Alexander in his advance within the Persian Empire but receives nonetheless a post in Asia Minor.
Alexander reportedly contacted him with a demand of reading material for his spare time.
Harpalus sent his King theatrical plays by Aeschylus, Sophocles and Euripides, the history of Philistus and odes by Philoxenus and Telestes.