CGY

CGY may refer to:

Calgary, Alberta, Canada
Laguindingan Airport, serving Cagayan de Oro, Mindanao, Philippines, IATA airport code CGY
Changanasseri railway station, in Kottayam District, Kerala, India, station code CGY
Centigray (cGy), a derived unit of ionizing radiation dose
Calian, a Canadian company traded on the Toronto Stock Exchange