| GEC | Gigabit EtherChannel | 千兆以太网通道 |
| GEC | Geriatric Education Center (US government; HRSA) | 老年医学教育中心(美国政府;HRSA) |
| GEC | General Electrical Company | 通用电气公司 |
| GEC | General Electrodynamics Corporation | 通用电动公司 |
| GEC | Global Environmental Change | 全球环境变化 |
| GEC | galactose elimination capacity | 半乳糖消除能力 |
| GEC | gamma-electric cell | 伽马电池 |
| GEC | gradient elution chromatography | 梯度洗脱色谱法 |
| GEC | gradient ion-exchange chromatography | 梯度离子交换色谱法 |
| GEC | General Education Curriculum | 通识教育课程 |
| GEC | General Electric Corporation | 通用电气公司 |
| GEC | General Education Committee | 普通教育委员会 |
| GEC | Gecitkale, Cyprus | 塞浦路斯格西特卡莱 |
| GEC | Government Engineering College | 政府工程学院 |
| GEC | Georgia Electrification Council | 格鲁吉亚电气化委员会 |
| GEC | Galaxy Exploration Command | 银河探索司令部 |
| GEC | Grounding Electrode Conductor | 接地极导体 |
| GEC | Ghana Evangelism Committee | 加纳福音委员会 |
| GEC | Gudlavalleru Engineering College (India) | Gudlavalleru工程学院(印度) |
| GEC | Geneva Executive Centre | 日内瓦执行中心 |
| GEC | Gilbert-Elliott Channel | 吉尔伯特艾略特频道 |
| GEC | Gross Error Check | 总误差检查 |
| GEC | Grounding Electrode Conductor (electrical) | 接地极导体(电气) |
| GEC | Gaseous Electronics Conference | 气态电子会议 |
| GEC | Green Environment Conservation | 绿色环境保护 |
| GEC | Green Energy Credits | 绿色能源信贷 |
| GEC | Gross Earned Commissions (insurance) | 毛收入佣金(保险) |
| GEC | Geospace Electrodynamic Connections | 地球空间电动连接 |
| GEC | Gastric Emptying Coefficient | 胃排空系数 |
| GEC | Good Electrical Chip (semi-conductor) | 良好的电气芯片(半导体) |
| GEC | General Engineering Consultant | 总工程顾问 |
| GEC | Google Earth Community (online community) | 谷歌地球社区(在线社区) |
| GEC | Giant Enemy Crab (gaming, Genji 2) | 巨敌蟹(游戏,源氏2) |
| GEC | General Electric Capital | 通用电气资本 |
| GEC | GÉnÉrale Électrique du Canada | GÉnÉrale Électrique du Canada |
| GEC | Guyana Electricity Corporation | 圭亚那电力公司 |
| GEC | Grade Evaluation Company (coins) | 等级评估公司(硬币) |