| GCD | Greatest Common Divisor | 最大公约数 |
| GCD | gross cystic disease | 粗囊性疾病 |
| GCD | Generic CAD Drawing format (vector) | 通用CAD绘图格式（矢量） |
| GCD | Gas Chromatography Distillation | 气相色谱蒸馏 |
| GCD | Greater Confinement Disposal (waste management) | 更严格的限制处理（废物管理） |
| GCD | groundwater conservation district | 地下水保护区 |
| GCD | Greatest Common Denominator | 最大公共分母 |
| GCD | General and Complete Disarmament | 全面彻底裁军 |
| GCD | Goals of Care Designation | 护理目标指定 |
| GCD | Generator Control Display | 发电机控制显示屏 |
| GCD | Grand Comic-Book Database | 大漫画数据库 |
| GCD | Glen Canyon Dam | 格伦峡谷大坝 |
| GCD | Global Clan Directory (gaming) | 全球氏族名录（游戏） |
| GCD | Glass Cutting Device | 玻璃切割装置 |
| GCD | Global Communication Devices | 全球通信设备 |
| GCD | Griffith College Dublin (Dublin, Ireland) | 都柏林格里菲斯学院（爱尔兰都柏林） |
| GCD | Grand Coulee Dam | Grand Coulee大坝 |
| GCD | Genetic Chromosome Dissection | 遗传染色体解剖 |
| GCD | Global Connectivity Demonstration | 全球连接演示 |
| GCD | General Defense Position/Plan | 一般的防御地位/计划 |
| GCD | Global Cooldown (gaming) | 全球冷却（游戏） |
| GCD | Global Clinical Development | 全球临床开发 |
| GCD | Gaia Community Discussion | Gaia社区讨论 |