Géry de Ghersem (also Géry Gersem) (1573 to 1575 – 25 May 1630) was a Franco-Flemish composer of the late Renaissance, active both in Spain at the court of Philip II and Philip III, and in his native from Low countries. He was a prolific and highly regarded composer at the time, but little of his work survives, almost all having been destroyed in the Lisbon earthquake and fire of 1755.