EAY

EAY or Eay can refer to:


 * Aero Airlines, a regional airline based in Estonia from 2000 to 2008, by ICAO code
 * Eay Simay (born 1991), a Paralympic powerlifter from Laos
 * Empresa Aeronáutica Ypiranga, a Brazilian aircraft manufacturer from 1931 to 1942
 * Xi'an North railway station, a train station in Xi'an, Shaanxi province, China, by telegraph code
 * Effective Annual Yield, a business term; see List of business and finance abbreviations