GYA
| Acronym | Definition |
|---|---|
| GYA | Global Young Academy (est. 2010) |
| GYA | Greater Yellowstone Area |
| GYA | Gulf Yachting Association |
| GYA | Guyana Airways (ICAO code) |
| GYA | Green Youth Alliance |
| GYA | Global Youth Action (UK) |
| GYA | German Youth Activity |
| GYA | Glendale Youth Alliance, Inc. (est. 1994; Glendale, CA) |