| OYP | O & Y Properties Corporation
| Others |
| OYP | Oceanside Youth Partnership
| Others |
| OYP | Oconee Youth Playhouse
| Others |
| OYP | Office for Young People
| Others |
| OYP | Office of Youth Programs
| Others |
| OYP | Ohev Young Professionals
| Others |
| OYP | Okanagan Young Professionals
| Others |
| OYP | Oklahoma Youth Philharmonic
| Others |
| OYP | Once You Pop
| Others |
| OYP | One Year Plan
| Others |
| OYP | Online Youth Programs
| Others |
| OYP | Ontario Youth Parliament
| Others |
| OYP | Openarms Youth Project
| Others |
| OYP | Opportunity Youth Partnership
| Others |
| OYP | Orlando Young Professionals
| Others |
| OYP | Orleans Young Players
| Others |
| OYP | Our Youth Performers
| Others |
| OYP | Ovations for Young People
| Others |
| OYP | Overseas Youth Program
| Others |
| OYP | Overseas Youth Programmes
| Others |
| OYP | St.- Georges de l'Oyapock, French Guinea
| Others |