| CCO | Chief Cultural Officer | 首席文化官 |
| CCO | Chief Content Officer | 内容总监 |
| CCO | Certified Court Officer (Deputy Sheriffs Association of Michigan) | 认证法院官员（密歇根州副警长协会） |
| CCO | Contest Club Ontario | 安大略省竞赛俱乐部 |
| CCO | Cisco Connection Online | Cisco联机连接 |
| CCO | Close Combat Optics | 近距离作战光学系统 |
| CCO | cytochrome-oxydase | 细胞色素氧化酶 |
| CCO | Btx Graphics file (XBTX) | Btx图形文件（XBTX） |
| CCO | comprehensive care organization | 综合护理机构 |
| CCO | CyberChat Operational Data | CyberChat运营数据 |
| CCO | Chief Customer Officer | 首席客户官 |
| CCO | Columbia Chronicle On-line | 哥伦比亚纪事在线 |
| CCO | Check Cashing Outlet | 检查现金出口 |
| CCO | Carimagua, Colombia | 哥伦比亚卡里马瓜 |
| CCO | Concealed Carry Officers | 隐蔽搬运员 |
| CCO | Chinese Christian Outreach | 中国基督教外展 |
| CCO | Cervical Compression Overloading | 颈部压缩过载 |
| CCO | Charlotte Civic Orchestra (Charlotte, NC) | 夏洛特市民乐团（北卡罗来纳州夏洛特） |
| CCO | Cadet Chief Officer | 学员大副 |
| CCO | Communications Collection Outstation | 通信收集站 |
| CCO | Canadian College of Organists | 加拿大生物学院 |
| CCO | Conservative Central Office (UK) | 保守党中央办公室（英国） |
| CCO | Classified Control Officer | 秘密等级控制官 |
| CCO | Coal Controller Organization (India) | 煤炭控制员组织（印度） |
| CCO | Customer Care Office | 客户关怀办公室 |
| CCO | Complex Contingency Operations | 复杂应急操作 |
| CCO | Critical Compliance Objective | 关键合规目标 |
| CCO | Concord Chamber Orchestra (Milwaukee, WI) | 协和室内乐团（威斯康星州密尔沃基） |
| CCO | Claims Central Office (insurance) | 索赔中心办公室（保险） |
| CCO | Current Controlled Oscillator | 电流控制振荡器 |
| CCO | Communications Control Officer | 通信控制官 |
| CCO | Circumpolar Coordination Office (University of the Arctic; Rovaniemi, Finland) | 北极圈协调办公室（北极大学；芬兰罗瓦涅米） |
| CCO | Condemned: Criminal Origins (video game) | 谴责：犯罪起源（电子游戏） |
| CCO | Computing Center Operations | 计算中心运营 |
| CCO | Central Control Officer | 中央控制军官 |
| CCO | Community Corrections Officer | 社区惩教主任 |
| CCO | Chief Customer Officer (corporate title) | 首席客户官（公司职务） |
| CCO | Combat Cargo Officer | 作战装卸军官 |
| CCO | Clinchfield Railroad Company | 克林菲尔德铁路公司 |
| CCO | Coastal Caribbean Oils & Minerals, Ltd (former stock symbol; now delisted) | 加勒比海沿岸油和矿物质、有限公司(原股票的象征;现在撤走) |
| CCO | Christian Care Organization | 基督教关怀组织 |
| CCO | Chief Communications Officer (corporate title) | 首席通信官（公司职务） |
| CCO | Construction Council of Ontario (Union) | 安大略省建设委员会（联盟） |
| CCO | Combat Control Officer (Canadian naval equivalent of USN TAO and Royal Navy PWO) | 战斗控制官（相当于USN TAO和皇家海军PWO的加拿大海军） |
| CCO | Chief Consulting Officer (corporate title) | 首席咨询官（公司职务） |
| CCO | Canberra Community Orchestra (now renamed the National Capital Orchestra) | 堪培拉社区管弦乐队（现更名为国家首都管弦乐队） |
| CCO | Continuous Cardiac Output | 持续心输出量 |
| CCO | Contingency Contracting Officer | 紧急情况合同官 |
| CCO | Container Control Officer | 货柜管制主任 |
| CCO | Cytochrome C Oxidase | 细胞色素c氧化酶 |
| CCO | Cisco Connection Online (Cisco Systems) | Cisco联机连接（Cisco Systems） |
| CCO | COMINT Channels Only | 仅COMINT信道 |
| CCO | Chief Compliance Officer (corporate title) | 首席合规官（公司职务） |
| CCO | Central Contracting Office | 中央合同办公室 |
| CCO | Catholic Conference of Ohio (Columbus, Ohio) | 俄亥俄州天主教会议（俄亥俄州哥伦布） |
| CCO | Compound Cycle Engine | 复合循环发动机 |
| CCO | Chief of Combined Operations | 联合作战部长 |
| CCO | Computer Center Operator | 计算机中心操作员 |
| CCO | Certified Crane Operator | 认证起重机操作员 |
| CCO | Circuit Control Officer | 电路控制官 |
| CCO | Canadian Cadet Organizations | 加拿大学员组织 |
| CCO | CÓpia de Carbono Oculta (Portuguese: Blind Carbon Copy) | CÓpia de Carbono Oculta (Portuguese: Blind Carbon Copy) |
| CCO | Chief Creative Officer (corporate title) | 首席创意官（公司职务） |
| CCO | College of Chiropractors of Ontario | 安大略省脊医学院 |
| CCO | Chief Carbon Officer | 首席碳官 |
| CCO | Contract Change Order | 合同变更单 |
| CCO | Collapsed Central Office (Tachion Networks, Inc.) | 坍塌的中央办公室（Tachion Networks，Inc.） |
| CCO | Can't Call Out | 不能叫出来 |
| CCO | Cancer Care Ontario (Canada) | 安大略省癌症护理中心（加拿大） |
| CCO | Close Combat Optic | 近战镜片 |
| CCO | Crystal Controlled Oscillator | 晶体控制振荡器 |
| CCO | Chief Control Officer | 首席控制官 |
| CCO | Circuit Control Office | 电路控制办公室 |
| CCO | Continuity-Check Outgoing | 连续性检查输出 |