| Abbreviation | Definition |
|---|---|
| DYSL | Dover Youth Softball League |
| DYSS | Dalhousie Youth Support Services |
| DYSS | Department of Youth Services and Sports |
| DYSS | Diaspora Youth Support Services |
| DYT | Delta Youth Theatre |
| DYT | Developmental Youth Teams |
| DYT | Dorchester Youth Theatre |
| DYT | Dublin Youth Theatre |
| DYV | Detroit Youth Volume |
| DYVT | Damascus Youth Voluntary Team |
| DYWTT | Do You Want To Talk? |
| EARY | Educating At Risk Youth |
| EASY | Eastern Area Schools Youth |
| EASY | Eliminate Alcohol Sales To Youth |
| EAYG | East Asian Youth Games |
| EBYB | East Bell Youth Boosters |
| ECY | Educational Centre for Youth |
| ECY | Episcopal Church for Youth |
| ECY | Episcopal Commission on Youth |
| ECY | Episcopal Curriculum for Youth |