| Abbreviation | Definition |
|---|---|
| CYS | California Youth Symphony |
| CYS | Catholic Youth Sports |
| CYS | Centinela Youth Services |
| CYS | Child and Youth Services |
| CYS | Child Youth Services |
| CYS | Children and Youth Services |
| CYS | Children Youth Services |
| CYS | Colorado Youth Soccer |
| CYS | Comprehensive Youth Services |
| CYSA | California Youth Soccer Association |
| CYSA | Catasauqua Youth Soccer Association |
| CYSA | Chambersburg Youth Soccer Association |
| CYSA | Chariho Youth Soccer Association |
| CYSA | Chaska Youth Softball Association |
| CYSA | Chelmsford Youth Soccer Association |
| CYSA | Chesterfield Youth Softball Association |
| CYSA | Chugiak Youth Sports Association |
| CYSA | Clearcreek Youth Soccer Association |
| CYSA | Columbia Youth Soccer Association |
| CYSA | Columbus Youth Soccer Association |