| Acronym | Definition |
|---|
| YSAA➣Yemeni Students Association Abroad |
| YSAA➣Yoga Sports Association of Australia |
| YSAA➣Yale Spizzwinks Alumni Association |
| YSAA➣Yakut State Academy of Agriculture |
| YSAA➣York Simcoe Amateur Astronomers (Canada) |
| YSAA➣Youth Sports Association of America |