| OMC | Operations and Maintenance Center | 操作管理中心 |
| OMC | Order Management Center | 订单管理中心 |
| OMC | Oman Medical College | 阿曼医学院 |
| OMC | Organisation Mondiale du Commerce (French: WTO) | 世界贸易组织(法语:WTO) |
| OMC | Office of Military Cooperation | 军事合作处 |
| OMC | Organização Mundial do ComÉrcio (Portuguese: World Trade Organization) | Organização Mundial do ComÉrcio (Portuguese: World Trade Organization) |
| OMC | Outboard Marine Corporation | 舷外海事公司 |
| OMC | Occupational Measurement Center | 专业评估中心 |
| OMC | Online Medical Control (Canadian Coast Guard, Rescue Specialist) | 在线医疗控制(加拿大海岸警卫队、救援专家) |
| OMC | Optical Memory Card | 光学存储卡 |
| OMC | Orbitel Mobile Communications Ltd. | Orbitel移动通信有限公司。 |
| OMC | One-Man Control | 一人控制 |
| OMC | Optical Media Converter | 光学介质转换器 |
| OMC | organic molecular crystal | 有机分子晶体 |
| OMC | Optimum Moisture Content | 最佳含水量 |
| OMC | Office of Munitions Control | 弹药控制处 |
| OMC | Open Market Committee | 公开市场委员会 |
| OMC | Orion Molecular Cloud | 猎户座分子云团 |
| OMC | Office of Managed Care | 管理护理办公室 |
| OMC | Office of Motor Carriers | 汽车运输公司办公室 |
| OMC | Obscene Message to Console | 发送到控制台的淫秽消息 |
| OMC | Operation Machina Counterfeit | Machina假冒行动 |
| OMC | Operation and Maintenance Center | 运维中心 |
| OMC | Other Moisture Content | 其他含水量 |
| OMC | Olmsted Medical Clinic | 奥姆斯特德医疗诊所 |
| OMC | One Man Crew | 一名船员 |
| OMC | Outboard Marine Company | 舷外海事公司 |
| OMC | Oh My Cat!! | 哦,我的猫!! |
| OMC | Optical Multi-Channel | 光学多通道 |
| OMC | Orbitel Mobile Communications | Orbitel移动通信 |
| OMC | Official Millionaires Club | 官方百万富翁俱乐部 |
| OMC | Otara Millionaires Club | Otara百万富翁俱乐部 |
| OMC | Organisation Mondiale De Commerce | 世界商业组织 |
| OMC | Owner May Carry | 所有者可以携带 |
| OMC | Overnite And Motor Cargo | 超限货物和机动货物 |
| OMC | Outboard Motor Company | 舷外汽车公司 |
| OMC | Office of Management Controls | 管理控制办公室 |
| OMC | Olszak Management Consulting, Inc. | Olszak管理咨询公司。 |
| OMC | Old Mill Century | 旧磨坊世纪 |
| OMC | Order of Friars Minor Conventual | 小修士会 |
| OMC | Chief Opticalman (Naval Rating) | 首席Opticalman(海军等级) |
| OMC | Ontario Medal for Good Citizenship | 安大略省优秀公民奖章 |
| OMC | Original Male Character | 原始男性角色 |
| OMC | Optical Multiplexed Carrier | 光复用载波 |
| OMC | Operation and Maintenance Costs | 运营和维护成本 |
| OMC | Organizational Member Council (ANSI term) | 组织成员委员会(ANSI术语) |
| OMC | Oh My Carlisle! | 噢,我的卡莱尔! |
| OMC | Oregon Mountain Community (Portland, OR retailer) | 俄勒冈州山区社区(波特兰,OR零售商) |
| OMC | outer membranes complex | 外膜复合体 |
| OMC | Orinoco Mining Company | 奥里诺科矿业公司 |
| OMC | Operation and Management Center | 运营管理中心 |
| OMC | Organizational Maintenance Concept | 组织维护概念 |
| OMC | Optical Moisture Content (materials engineering) | 光学含水量(材料工程) |
| OMC | Orissa Mining Corporation Ltd. | 奥里萨邦矿业有限公司。 |
| OMC | Omnicom Group, Inc. | Omnicom集团。 |
| OMC | open mitral commissurotomy | 开放式二尖瓣连合切开术 |
| OMC | Optical Media Center (Broadwing) | 光学媒体中心(Broadwing) |
| OMC | Oh My Chaos (humor) | 哦,我的混乱(幽默) |
| OMC | Organic (polymer) Matrix Composite | 有机(聚合物)基质复合材料 |
| OMC | Orchard Machinery Corporation (Yuba City, CA) | 乌节机械公司(加利福尼亚州尤巴市) |
| OMC | Other Management Controllable | 其他可控管理 |
| OMC | one-man clan | 一人氏族 |
| OMC | Oakland Municipal Code (California) | 奥克兰市法规(加利福尼亚州) |
| OMC | Optic/Millimeter-wave Converter | 光/毫米波转换器 |
| OMC | Open Method of Coordination (EU) | 开放式协调方法(EU) |
| OMC | Optimisation and Measurement Center | 优化和测量中心 |
| OMC | Ordered Macroporous Carbon | 有序大孔碳 |
| OMC | Outboard Motor Corporation | 舷外汽车公司 |
| OMC | Oman Methanol Company LLC | 阿曼甲醇公司 |
| OMC | Old Man's Child (band) | 老人的孩子(带) |
| OMC | Operations/Maintenance Coordinator | 操作和维护协调员 |
| OMC | Osteomeatal Complex | 骨道复合体 |
| OMC | OrganizaciÓn Mundial del Comercio (Spanish: World Trade Organization) | OrganizaciÓn Mundial del Comercio (Spanish: World Trade Organization) |
| OMC | Operation and Maintenance Cell | 操作和维护单元 |
| OMC | Organizzazione Mondiale del Commercio (Italian: World Trade Organization) | 世界商业组织(意大利语:世界贸易组织) |
| OMC | Otara Millionaires Club (musical artist) | Otara Millionaires俱乐部(音乐艺术家) |