Acy or ACY may refer to:
People with the surname Quincy Acy (born 1990), American basketball player
Places France Acy, Aisne Acy-en-Multien, Oise Acy-Romance, Ardennes
United Kingdom Abercynon railway station (National Rail code: ACY), a railway station on the Merthyr Line in South Wales Archway tube station (London Underground code: ACY), a tube station on the High Barnet branch of the Northern line in Archway, London
United States Acy, Louisiana Atlantic City, New Jersey, a city in southern New Jersey known for its boardwalk and casinos Atlantic City Rail Terminal (Amtrak code: ACY), a railway station on New Jersey Transit's Atlantic City Line Atlantic City International Airport in New Jersey, USA (IATA airport code ACY)
Other uses Akron, Canton and Youngstown Railroad, a former railroad in Ohio, US Cypriot Maronite Arabic, a moribund variety of Arabic spoken by the Maronite community of Cyprus