| Abbreviation | Definition |
|---|---|
| NYO | Northside Youth Organization |
| NYPP | Nigeria Youth Political Party |
| NYRA | National Youth Rights Association |
| NYS | National Youth Service |
| NYS | National Youth Strategy |
| NYSA | Nashville Youth Soccer Association |
| NYSA | Newburyport Youth Soccer Association |
| NYSA | Norman Youth Soccer Association |
| NYSA | Northboro Youth Soccer Association |
| NYSA | Northshore Youth Soccer Association |
| NYSA | Novato Youth Soccer Assoc |
| NYSC | National Youth |
| NYSC | National Youth Science Camp |
| NYSC | National Youth Science Camp's |
| NYSC | The National Youth Science Camp |
| NYSD | National Youth Science Day |
| NYSD | National Youth Service Day |
| NYSE | Not Youth See Egnog |
| NYSF | National Youth Science Forum |
| NYSL | Nashua Youth Soccer League |