What is GNY ? There may be more than one meaning of GNY , so check it out all meanings of GNY one by one. Looking for the definition of GNY? Find out what is the full meaning of GNY on Abbreviations. We found 4 dictionaries with English definitions that include the word gny: Click on the first link on a line below to go directly to a page where "gny" is defined. What does GNY mean? Get the full information of GNY acronym / abbreviation / slang definitions at AcronymsandSlang.