HYSA
| Acronym | Definition |
|---|---|
| HYSA | High-Yield Savings Account (investment) |
| HYSA | Hawaii Youth Soccer Association |
| HYSA | Hawaii Youth Sailing Association |
| HYSA | Hawaii Youth Symphony Association (Honolulu, HI) |
| HYSA | Holliston Youth Soccer Association (Holliston, MA) |
| HYSA | Hattiesburg Youth Soccer Association (Hattiesburg, MS) |