| GTCC | German touring car championship | 德国房车冠军赛 |
| GTCC | Government Travel Charge Card | 政府旅行收费卡 |
| GTCC | General Trading & Contracting Company | 一般贸易及承包公司 |
| GTCC | Guilford Technical Community College (Jamestown, NC) | 吉尔福德技术社区学院(北卡罗来纳州詹姆斯敦) |
| GTCC | Greater Than Class C (waste) | 大于C类(废物) |
| GTCC | Gas Turbine Combined-Cycle (power plant) | 燃气轮机联合循环(发电厂) |
| GTCC | G T C Telecom Corporation | G T C电信公司 |