NYSA
| Acronym | Definition |
|---|---|
| NYSA | New York Shipping Association (Edison, NJ) |
| NYSA | New York Systems Administrator Association |
| NYSA | New York State Archives (est. 1971; New York State Education Department) |
| NYSA | Nanaimo Youth Services Association (Canada) |
| NYSA | New York Singapore Association |
| NYSA | Northbridge Youth Soccer Association (Massachusetts) |