| Abbreviation | Definition |
|---|---|
| CYG | CTBTO Youth Group |
| CYGE | CFFN Youth for Global Entrepreneurship |
| CYGN | Conscious Youth Global Network |
| CYGNUS | Catholic Youth Growing Nurturing Understanding and Serving |
| CYH | Child and Youth Health |
| CYI | Caregiving Youth Institute |
| CYI | Children and Youth International |
| CYI | Chinatown Youth Initiatives |
| CYI | Chinese Youth Initiative |
| CYI | Christ for Youth International |
| CYI | Christian Youth Initiative |
| CYI | Climate Youth Initiative |
| CYI | Coatesville Youth Initiative |
| CYI | Connected Youth Initiative |
| CYI | Connecting Youth Initiative |
| CYI | Contemporary Youth Issues |
| CYI | Coordinated Youth Initiative |
| CYI | Creative Youth Initiative |
| CYI | Crivitz Youth Inc |
| CYIB | Children and Youth In Broadcasting |