| Abbreviation | Definition |
|---|---|
| CYFL | Colonial Youth Football League |
| CYFL | Colorado Youth Football League |
| CYFL | Columbia Youth Football League |
| CYFL | Community Youth Football League |
| CYFL | Cougar Youth Football League |
| CYFL | Crosby Youth Football League |
| CYFO | Children Youth and Families Office |
| CYFO | Connetquot Youth Football Organization |
| CYFS | Center for Youth and Family Solutions |
| CYFS | Chehalem Youth and Family Services |
| CYFS | Child Youth and Family Services |
| CYFS | Child Youth and Family Studies |
| CYFS | Child Youth Family Studies |
| CYFS | Child, Youth and Family Services |
| CYFS | Children Youth and Family Services |
| CYFS | Clinton Youth and Family Services |
| CYG | Church Youth Group |
| CYG | Cincinnati Youth Group |
| CYG | Cluster Youth Group |
| CYG | Commonwealth Youth Games |