| 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) |