| Abbreviation | Definition |
|---|---|
| OYPG | Overseas Youth Programme Grant |
| OYS | Omnipotent Youth Society |
| OYS | Ontario Youth Sports |
| OYS | Operation Youth Success |
| OYT | Oasis Youth Theatre |
| OYT | Oxford Youth Theatre |
| OYTS | Ocean Youth Trust Scotland |
| OYTS | Ocean Youth Trust South |
| OYTS | Ohio Youth Tobacco Survey |
| OYU | Opportunity Youth United |
| OYU | Orlando Youth of Unity |
| PANTRY | Positive Achievements Needed to Restore the Youth |
| PAY | Positive Alternatives for Youth |
| PAYE | Plan of Action for Youth Empowerment |
| PAYO | Pilipino American Youth Organization |
| PAYT | Police And Youth Together |
| PCYC | Plymouth Christian Youth Center |
| PCYC | Police Citizens Youth Club |
| PCYF | Progressive Conservative Youth Federation |
| PDC | Public Display of Courage |