| OECC | Old English Car Club | 老英格兰汽车俱乐部 |
| OECC | Opto Electronics And Communications Conference | 光电与通信会议 |
| OECC | Ouachita Electric Cooperative Corporation | 瓦奇塔电力合作公司 |
| OECC | Optometric Eye Care Center | 眼科护理中心 |
| OECC | Optometric Eye Care Centers | 眼科护理中心 |
| OECC | Overhead Environment Cavern-diver Course | 高空环境洞穴潜水员课程 |
| OECC | Optoelectronic and Communications Conference | 光电与通信会议 |
| OECC | Overseas Environmental Cooperation Center | 海外环境合作中心 |