CGY
| Acronym | Definition |
|---|---|
| CGY | Calgary (Canada) |
| CGY | Centigray |
| CGY | Cagayan de Oro, Philippines (Airport Code) |
| CGY | Center of Gravity (usually seen as CG) |
| CGY | Chicago Gay Youth (Chicago, IL) |
| CGY | Certificado de Garantía Yasuní (Spanish: Yasuní Guarantee Certificate; Ecuador) |