| Acronym | Definition |
|---|
| IYA➣International Year of Astronomy (2009) |
| IYA➣In Your Arms (Chris Brown song) |
| IYA➣Iyengar Yoga Association (UK) |
| IYA➣Irish Yoga Association (est. 1978) |
| IYA➣In Your Ass |
| IYA➣Islamic Youth Association (various locations) |
| IYA➣Index Versus Year Ago |