| Abbreviation | Definition |
|---|---|
| OWL | One World Line |
| OWLS | Older Wiser Lutheran Saints |
| OWLS | Older Wiser Lutheran Seniors |
| OWS | Ordained to Word and Service |
| OYM | Office for Youth Ministry |
| OYM | Ohio Yearly Meeting |
| OYM | Orthodox Youth Missions |
| OYM | Orthodox Youth Movement |
| P | Passover |
| P | Peace |
| P | Powerful |
| P | Presbyterian |
| P | Protestant |
| P2C | Power To Change |
| P4M | Pray 4 Mercy |
| P4TA | Preparing For The Apocalypse |
| P4U | Praying For You |
| PAAC | Progressive Asian American Christians |
| PAC | Panania Anglican Church |
| PAC | Parish Action Committee |