| OCC | Output Circuit Check | 输出线路检查 |
| OCC | Opportunity Cost of Capital | 资金机会成本 |
| OCC | Office of the Chief Counsel | 首席法律顾问办公室 |
| OCC | Ontario Casino Corporation | 安大略赌场公司 |
| OCC | Onsite Construction Contractor | 现场施工承包商 |
| OCC | Overclockers Club (website) | Overclocks俱乐部（网站） |
| OCC | Ontario Chamber of Commerce | 安大略省商会 |
| OCC | Other Charges and Credits | 其他费用和信贷 |
| OCC | OrganizaciÓn para los Comunistas Canarios (Organization for Canarian Communists; Canary Islands) | OrganizaciÓn para los Comunistas Canarios (Organization for Canarian Communists; Canary Islands) |
| OCC | Office of the Comptroller of the Currency | 通货审计官办公室 |
| OCC | Occasionally | 偶尔地 |
| OCC | Options Clearing Corporation | 期权清算公司 |
| OCC | Oklahoma Corporation Commission | 俄克拉荷马州公司委员会 |
| OCC | occasional | 偶尔的 |
| OCC | Overseas Coordination Conference | 海外协调会议 |
| OCC | occlusion | 闭塞，闭塞 |
| OCC | Ontario Computer Centre | 安大略省计算机中心 |
| OCC | occupational | 职业的 |
| OCC | Other Common Carrier | 其他公共承运人 |
| OCC | Organochlorine Compound | 有机氯化合物 |
| OCC | Operation Command Centre (Canada) | 行动指挥中心（加拿大） |
| OCC | Officer Classification Code | 军官分类代码 |
| OCC | Operating Company Contribution | 运营公司出资 |
| OCC | Orange County Council (Boy Scouts of America) | 奥兰治县议会（美国童子军） |
| OCC | Onset Computer Corporation | Onset计算机公司 |
| OCC | Outage Control Center (nuclear power) | 大修控制中心（核电） |
| OCC | Occupational Character Class (RIFTS) | 职业性格分类（RIFTS） |
| OCC | Old Catholic Church | 旧天主教会 |
| OCC | Originating Call Control (Cisco) | 发起呼叫控制（Cisco） |
| OCC | Ordened Computer Chaos (LAN-Party in Belgium) | 有序的计算机混乱（比利时局域网党） |
| OCC | Orchid Country Club (Singapore) | 兰花乡村俱乐部（新加坡） |
| OCC | Ocean Carrier Code | 海运承运人代码 |
| OCC | Orange Coast College (Costa Mesa, California) | 奥兰治海岸学院（加利福尼亚州科斯塔梅萨） |
| OCC | Oregon Convention Center (Portland, OR) | 俄勒冈州会议中心（俄勒冈州波特兰） |
| OCC | Onondaga Cycling Club (Syracuse, NY) | Onondaga自行车俱乐部（纽约州锡拉库扎） |
| OCC | Ozark Christian College | 奥扎克基督教学院 |
| OCC | Occasionally Connected Computing (mobile computing & WiFi) | 有时候连接电脑(移动计算及无线) |
| OCC | Operations Clerical Coordinator | 业务文书协调员 |
| OCC | Onondaga Community College (Syracuse, NY) | Onondaga社区学院（纽约州锡拉库扎） |
| OCC | Old Corrugated Cardboard (recyclable waste) | 旧瓦楞纸板（可回收废物） |
| OCC | Occiput | 枕骨 |
| OCC | Oakland Community College | 奥克兰社区学院 |
| OCC | Option Clearing Corporation | 期权清算公司 |
| OCC | Oakland County College | 奥克兰县学院 |
| OCC | Original Character Creation | 原始角色创建 |
| OCC | Object Class Cardinality | 对象类基数 |
| OCC | Obscure Canon Character | 晦涩的佳能字符 |
| OCC | Out Of Character Comment | 字符外注释 |
| OCC | Oswaldtwisle Community Church | Oswaldtwisle社区教堂 |
| OCC | Occupational Character Class | 职业性格等级 |
| OCC | Organic Commodity Commission | 有机商品委员会 |
| OCC | Objectoriented Compiler Construction | 面向对象编译器构造 |
| OCC | Old Corrugated Cardboard | 旧瓦楞纸板 |
| OCC | One City Challenge | 一个城市挑战 |
| OCC | Ocean County College | 海洋县学院 |
| OCC | Onondaga Community College | 奥内达加社区学院 |
| OCC | Odd Cross-Correlation | 奇互相关 |
| OCC | Osiris Chess Club, Homewood, Alabama | 奥西里斯国际象棋俱乐部，阿拉巴马州Homewood |
| OCC | Owens Community College, Toledo, Ohio | 俄亥俄州托莱多欧文斯社区学院 |
| OCC | Owensboro Community College (Kentucky) | 欧文斯博罗社区学院（肯塔基州） |
| OCC | Orthogonal Complementary Code | 正交互补码 |
| OCC | Optical Connection Controller (IEEE) | 光连接控制器（IEEE） |
| OCC | Officially Certified Chronometer | 官方认证的计时码表 |
| OCC | Operation Christmas Child | 圣诞儿童行动 |
| OCC | Orinda Country Club (California) | 奥林达乡村俱乐部（加利福尼亚州） |
| OCC | Object Class Code | 对象类代码 |
| OCC | Optical Control Card (Sycamore) | 光学控制卡（Sycamore） |
| OCC | Operation Control Centre (UK) | 运行控制中心（英国） |
| OCC | Oakland Community College (Detroit, MI) | 奥克兰社区学院（密歇根州底特律） |
| OCC | Orange County Choppers (Orange County, NY) | 奥兰治县切碎机（纽约州奥兰治县） |
| OCC | Outgoing Call Completions | 呼出呼叫完成 |
| OCC | Opportunity Cost of Capital (finance) | 资本机会成本（财务） |
| OCC | Occupancy Rate | 入住率 |
| OCC | Oil Coordination Committee | 石油协调委员会 |
| OCC | Open-Loop Control | 开环控制 |
| OCC | Operating Characteristic Curve | 工作特性曲线 |
| OCC | Optimistic Concurrency Control | 乐观并发控制 |
| OCC | Operator Control Command | 操作员控制命令 |
| OCC | Ontario College Counsellors | 安大略大学辅导员 |
| OCC | Odd Crosscorrelation | 奇互相关 |
| OCC | One Cycle Control (switching power converters) | 单周期控制（开关电源转换器） |
| OCC | Occulting (nautical) | 隐藏（航海） |
| OCC | Orthodox Church of Canada | 加拿大东正教 |
| OCC | Office Congolais de Contrôle (Democratic Republic of Congo ISO correspondent member) | Office Congolais de Contrôle (Democratic Republic of Congo ISO correspondent member) |
| OCC | Officer Course Code | 军官课程代码 |
| OCC | Order of the Caribbean Community | 加勒比共同体秩序 |
| OCC | Old Corrugated Cartons (pulp and paper industry) | 旧瓦楞纸箱（纸浆和造纸行业） |
| OCC | Online Career Center | 在线职业中心 |
| OCC | Ocean County College (Toms River, NJ) | 海洋县学院（新泽西州汤姆斯河） |
| OCC | Operational/Operations Control Center | 操作/操作控制中心 |
| OCC | Office of the Chlidren's Commissioner (New Zealand) | 儿童节那天的专员(纽西兰) |
| OCC | Ohno Continuous Casting (high-quality technique for drawing copper) | Ohno连续铸造（拔铜的高质量技术） |
| OCC | Occupation | 工作 |
| OCC | Oakton Community College | 欧克顿社区学院 |
| OCC | Orange County Choppers | 橘郡重型机车厂 |
| OCC | Odawara Christian Center | 小田原基督教中心 |
| OCC | organic carbon cycle | 有机碳循环 |
| OCC | oat cell carcinoma | 燕麦细胞癌 |
| OCC | Operations Control Center | 营运控制中心 |