| RCL | Runway Center Line | 跑道中心线 |
| RCL | Royal Credit Line (RBC Bank) | 皇家信贷额度(加拿大皇家银行) |
| RCL | Rapid Center Library | 快速中心库 |
| RCL | Robot Command Language | 机器人命令语言 |
| RCL | Ruling Case Law | 判例法裁决 |
| RCL | Radio Communications Link | 无线电通信链路 |
| RCL | Revised Common Lectionary | 修订共同经题 |
| RCL | Recall (calculator function) | 召回(计算器功能) |
| RCL | Royal Canadian Legion | 加拿大皇家军团 |
| RCL | Rotate Carry Left | 向左旋转进位 |
| RCL | Radiological Control Line | 辐射控制线 |
| RCL | Recoilless | 无后坐力 |
| RCL | Radio Control Link | 无线电控制链路 |
| RCL | Radar Controller | 雷达控制器 |
| RCL | Repairable Components List | 可维修部件列表 |
| RCL | Rate Classification Level | 费率分类级别 |
| RCL | Resistance, Capacitance, and Inductance | 电阻、电容和电感 |
| RCL | Routemaster Coach Lengthened | Routemaster Coach加长 |
| RCL | Reactor Coolant Loop | 反应堆冷却剂回路 |
| RCL | Routing, Channel Assignment, Link Scheduling (algorithm) | 路由、信道分配、链路调度(算法) |
| RCL | The Revised Common Lectionary | 修订后的公共演讲 |
| RCL | Representative Council of Learners (South Africa) | 学习者代表理事会(南非) |
| RCL | RÉseau Canadien des Langues | RÉseau Canadien des Langues |
| RCL | Restrictive Conductive Location | 限制性导电位置 |
| RCL | Replication Command Language | 复制命令语言 |
| RCL | Remote Control Locomotive (railroads) | 远程控制机车(铁路) |
| RCL | Remote Central Locking (vehicle window feature) | 远程中控锁(车窗功能) |
| RCL | Repair Cycle Level | 维修周期级别 |
| RCL | Ranger Crestliner Lund | 游骑兵Crestliner Lund |
| RCL | Agilent Technologies, Inc. (former symbol, now delisted) | 安捷伦科技股份有限公司(前标志,现已摘牌) |
| RCL | Royal Caribbean Cruises, LTD. | 皇家加勒比游轮有限公司。 |
| RCL | Recognition Configuration Language | 识别配置语言 |
| RCL | range of comfortable loudness | 舒适响度范围 |
| RCL | Rotate through Carry Left | 通过向左进位旋转 |
| RCL | radiocontrast lymphangiography | 放射造影淋巴管造影 |
| RCL | renal clearance | 肾清除率 |
| RCL | radiation counter laboratories | 辐射计数器实验室 |
| RCL | Robocup Command Log | Robocup命令日志 |
| RCL | Real Combat League | 真实战斗联盟 |
| RCL | Redcliffe, Vanuatu | 瓦努阿图雷德克里夫 |
| RCL | Remote Controlled Locomotive | 远程控制机车 |