NYN

NYN may refer to:


 * The IATA code for Nyngan Airport
 * The ISO-639 code for the Nkore language
 * The train station code for Naini, India
 * The geocode for Ningyuan County, Yongzhou Prefecture, Hunan Province, China; see List of administrative divisions of Hunan
 * New York Nets ABA/NBA basketball team