Posted in Business & Finance, Government & Military, Organizations ACY stands for Advocates for Children and Youth (Maryland) ACY stands for Atlantic City Rail Terminal (Amtrak station code; Atlantic City, NJ) ACY stands for Akron, Canton and Youngstown (railroad; 1907-1982; Ohio) ACY stands for Assets for Colorado Youth (Denver, CO) ACY stands for Atlantic City /Atlantic Cty, NJ, USA – Atlantic City International (Airport Code)