OPoP
| Acronym | Definition |
|---|---|
| OPoP | Original Proof of Purchase |
| OPoP | Optimal Pregnancy Outcome Program (North Dakota Department of Health) |
| OPoP | Old Post Office Pavilion (historic site; El Centro, CA) |
| OPoP | Orange Power of the Past (farming exhibition) |
| OPoP | One Price One Product (Media and Advertising) |
| OPoP | One Plan, One Process (Treasury Board of Canada Secretariat) |
| OPoP | Optical Pump-Optical Probe (spectroscopy) |