| DCOC | Deputy Commandant of Cadets | 学员副指挥官 |
| DCOC | Denver Church of Christ | 丹佛基督教堂 |
| DCOC | Domestic Crisis Outreach Committee | 国内危机外联委员会 |
| DCOC | Davis Comic Opera Company | 戴维斯喜剧歌剧公司 |
| DCOC | Diplomacy Club Of Canberra | 堪培拉外交俱乐部 |
| DCOC | Dayton Church of Christ | 代顿基督教堂 |
| DCOC | Damage Control Operational Concepts | 损害控制作战概念 |
| DCOC | Direct Current Offset Correction | 直流偏移校正 |
| DCOC | Dickinson College Outing Club | 迪金森学院户外俱乐部 |
| DCOC | Deutschen Chill Out Charts | 德国冷静图表 |
| DCOC | Deferred Compensation Oversight Committee | 递延薪酬监督委员会 |
| DCOC | Digital Combat Operations Center | 数字作战作战中心 |
| DCOC | Department For Combating Organized Crime | 打击有组织犯罪部 |