Look up Percy in Wiktionary, the free dictionary.
The English surname Percy is of Norman origin, coming from Normandy to England, United Kingdom. It was from the House of Percy, Norman lords of Northumberland, and derives from the village of Percy-en-Auge in Normandy. From there, it came into use as a mostly masculine and rarely feminine given name. It is also a short form of the given name Percival, Perseus, etc.