Allan Percy (2 July 1577 – 11 November 1611) was an English aristocrat and landowner who sat as MP for Beverley from 1604 to 1611.
Percy was born into the Percy family as the son of Henry Percy, 8th Earl of Northumberland (1532–1585) and Lady Katherine Neville (1546–1596). He was a cousin of the Gunpowder Plot conspirator Thomas Percy.
From 1603 to 1606 he was lieutenant of the Gentlemen Pensioners, under the captaincy of his brother Henry, 9th Earl.