| COB | Complete or before | 在.....日期前完成 |
| COB | Cache on board | 板上集成缓存 |
| COB | Chip on Board | 芯片直接贴装技术 |
| COB | Close of Business | 歇业 |
| COB | Corncob | 玉米穗轴 |
| COB | Capital One Bank | 资本一银行 |
| COB | Conformity Assessment Body | 合格评定机构 |
| COB | Commander of Brothers (gaming community) | 兄弟指挥官（游戏社区） |
| COB | Crusty Old Bastard | 残忍的老混蛋 |
| COB | City of Berkeley (California) | 伯克利市（加利福尼亚州） |
| COB | Case of Beer | 啤酒箱 |
| COB | Crew-Overboard | 船员舷外 |
| COB | Contingency Operating Base | 应急行动基地 |
| COB | California-Oregon Border | 加利福尼亚-俄勒冈州边境 |
| COB | City Of Bayside | Bayside市 |
| COB | Continuously Overwhelmed with Blessings | 不断被祝福淹没 |
| COB | COBOL Source Code (file name extension) | COBOL源代码（文件扩展名） |
| COB | Continent Ocean Boundary | 大陆-海洋边界 |
| COB | Graphics (Caligari trueSpace2 File Format) | 图形（Caligari trueSpace2文件格式） |
| COB | Communications Office Building (NASA) | 通信办公楼（NASA） |
| COB | Citizen Oversight Board | 公民监督委员会 |
| COB | Combined Order of Battle | 联合作战顺序 |
| COB | Chief Of the Boat | 船的船长 |
| COB | Corn, Oats, & Barley (livestock feed) | 玉米和大麦、燕麦、牲畜饲料) |
| COB | Clean on Board (shipping) | 船上清洁（装运） |
| COB | Center for Oral Biology (Karolinska Institutet, Huddinge, Sweden) | 口腔生物学中心（瑞典HuddingeKarolinska研究所） |
| COB | College of the Bahamas | 巴哈马学院 |
| COB | Cranky Old Bastard | 古怪的老混蛋 |
| COB | Commission des OpÉrations de Bourse | Commission des OpÉrations de Bourse |
| COB | College of Business | 商业学院 |
| COB | Current on Board | 船上电流 |
| COB | California Oregon Border | 加利福尼亚-俄勒冈州边界 |
| COB | Call On Business | 商务电话 |
| COB | Columbia Labs, Inc. | 哥伦比亚实验室有限公司。 |
| COB | CONUS Operating Base | CONUS运营基地 |
| COB | Carry on Business (license; India) | 开展业务（许可证；印度） |
| COB | Corn Oats And Barley | 玉米燕麦和大麦 |
| COB | Continuous Open Bid | 连续公开投标 |
| COB | City Of Brass | 黄铜之城 |
| COB | Contractors on the Battlefield | 战场上的承包商 |
| COB | Conan O'Brien (TV personality) | 'Brien(电视名人柯南啊!) |
| COB | Certificate of Birth | 出生证明书 |
| COB | Civilian On the Battlefield | 战场上的平民 |
| COB | Command Operating Budget | 司令部管理预算 |
| COB | City of Brass (game) | 黄铜之城（游戏） |
| COB | Coalition of Brothers (gaming community) | 兄弟联盟（游戏社区） |
| COB | Cobol language source code file | Cobol语言源代码文件 |
| COB | Church of the Brethren | 兄弟会教堂 |
| COB | Circle of Bosses | 老板圈 |
| COB | Commencement of Business | 业务的开始 |
| COB | Cut Out Background (digital photo manipulation) | 剪切背景（数字照片处理） |
| COB | Cash on the Barrelhead | Barrelhead上的现金 |
| COB | Class of Business | 业务类别 |
| COB | Change of Basis (linear algebra, changing vectors from one basis to another) | 基的变化（线性代数，从一个基到另一个基的向量变化） |
| COB | Continuous Open Bidding | 连续公开招标 |
| COB | City of Bellingham (Washington) | 贝灵汉市（华盛顿） |
| COB | Commission des Operations de Bourse (French stock market regulator) | 证券交易委员会（法国股市监管机构） |
| COB | Collocated Operating Base | 附属作战基地 |
| COB | Continuity of Business | 业务连续性 |
| COB | Children of Bodom (band, Finland) | 博多姆的孩子们（乐队，芬兰） |
| COB | Chrome Over Brass (snare drums) | 黄铜镀铬（军鼓） |
| COB | Coordination Of Benefits | 利益的协调 |
| COB | Continuous Open Bidding (sorority/fraternity recruitment) | 连续公开招标(女生联谊会/博爱招聘) |
| COB | Crusty Oval Bread | 脆皮椭圆形面包 |
| COB | Clear-Over-Base (2-component car paints) | 透明底漆（双组分汽车漆） |
| COB | ComitÊ OlÍmpico Brasileiro (Brazilian Olympic Committee) | ComitÊ OlÍmpico Brasileiro (Brazilian Olympic Committee) |
| COB | Cost Of Business | 业务成本 |
| COB | Call Out Bonus | 调出奖金 |
| COB | Cargo Onboard | 船上货物 |
| COB | Clean On Board | 船上清洁 |
| COB | Cost Of Borrowing | 借款成本 |
| COB | Civilians on the Battlefield | 战场上的平民 |
| COB | Carrying On Business | 开展业务 |
| COB | Central Obrera Boliviana (Bolivian labor organization) | 玻利维亚中部奥布雷拉（玻利维亚劳工组织） |
| COB | Conduct of Business | 商业行为 |
| COB | Children of Bodom | 博多姆的孩子们 |
| COB | Cost of Billing | 开票成本 |
| COB | Close Of Business (day) | 营业结束（天） |
| COB | Church Office Building (Church of Jesus Christ of Latter-day Saints) | 教堂办公楼（耶稣基督后期圣徒教堂） |
| COB | Comisiones Obreras de Barrio | 巴里奥州委员会 |
| COB | City of Bridgetown (Barbados) | 布里奇敦市（巴巴多斯） |
| COB | Council Of Brothers (gaming clan) | 兄弟会（博彩家族） |
| COB | Concluding Observation (United Nations) | 结论性意见（联合国） |
| COB | Country of Birth | 出生国 |
| COB | Change Of Billing | 账单变更 |