| OPEC | Organization of Petroleum Exporting Countries | 石油出口国组织 |
| OPEC | Overeating Pudgy Exhilarated Cockroache | 过度食用Pudgy爆笑蟑螂 |
| OPEC | Overflowing Porta-potties Excrete in China | 中国流出的Porta盆栽混凝土 |
| OPEC | Old People Eat Cake | 老人吃蛋糕 |
| OPEC | Organization of the Petroleum Exporting Countries | 石油输出国组织 |
| OPEC | Organization of Preppies that Eat Cheese | 吃奶酪的预科生组织 |
| OPEC | Organization Of People For Energy Conservation | 节能人士组织 |
| OPEC | Oil Profits Eat Consumers | 石油利润蚕食消费者 |
| OPEC | Obese Penguins Eating Cars | 肥胖企鹅吃汽车 |
| OPEC | Ocean Processes and European Climate | 海洋过程与欧洲气候 |
| OPEC | Overly Protective Egyptian Caskets | 过度保护的埃及篮子 |
| OPEC | Old Protestant Episcopal Church | 旧新教圣公会 |
| OPEC | Optical Proximity Effect Correction | 光学邻近效应校正 |
| OPEC | Ongoing Petrol Energy Crisis | 持续的汽油能源危机 |
| OPEC | Office of Prevention, Education, and Control | 预防、教育和控制办公室 |
| OPEC | Open Patios Expect Chairs | 开放式Patios Expect椅子 |
| OPEC | Only People Eat Cows | 只有人吃奶牛 |
| OPEC | Ordinary People Expecting Change | 期待变革的普通人 |
| OPEC | Office Of Petrol And Electricity Consumption | 汽油和电力消耗办公室 |
| OPEC | Orange Pineapples Enter Contests | 橙色菠萝进入比赛 |
| OPEC | Old People Eating Chicken | 老人吃鸡 |
| OPEC | Only Poop Excites Cats | 只有Poop才会让猫兴奋 |