| Abbreviation | Definition |
|---|---|
| OYM | On Your Mark |
| OYS | Ocean Yacht Systems |
| OYW | Organize Your Way |
| OZ | The Orchid Zone |
| OZA | O Z Architects |
| OZC | Olympia Zen Center |
| OZP | Ounce of Prevention, Inc. |
| OZR | Option Zero Racing |
| OZSC | Ozop Energy Solutions, Inc. |
| OZT | Ones & Zeroes Technologies Pvt., Ltd. |
| OZT | OnesandZeroes.com Ventech solutions |
| P | Permanente |
| P | Pharmacy |
| P | Philips |
| P | Piaggio |
| P&G | Procter Gamble |
| P&G | Procter & Gamble |
| P&G | Proctor and Gamble |
| P&O | Peninsular and Oriental Steam Navigation Company |
| P&S | Perlet & Shiner, P.A., defense attorneys |