| GTC | good till cancelled | 未注销前有效 |
| GTC | Greenhouse Gas Technology Center | 温室气体技术中心 |
| GTC | Gopher Tortoise Council | Gopher乌龟理事会 |
| GTC | Good 'til Cancel (online marketing) | 好的直至取消(网上营销) |
| GTC | Grains Trade Convention | 谷物贸易公约 |
| GTC | Gran Telescopio Canarias | 加那利大型望远镜 |
| GTC | Great Canary Telescope (Tenerife, Canary Islands) | 大加那利望远镜(加那利群岛特内里费岛) |
| GTC | Gas Turbine Compressor | 燃气轮机压缩机 |
| GTC | GPON Transmission Convergence (GPON = Gigabit Passive Optical Network) | GPON传输会聚(GPON=千兆无源光网络) |
| GTC | General Terms and Condition | 一般条款和条件 |
| GTC | Guanidinium Isothiocyanate | 异硫氰酸胍 |
| GTC | Government Technology Conference | 政府技术会议 |
| GTC | Government Trading Corporation of Iran | 伊朗政府贸易公司 |
| GTC | Group Technologies Corporation | 集团工艺技术公司 |
| GTC | Gestion Technique CentralisÉe (Industrial technology) | Gestion Technique CentralisÉe (Industrial technology) |
| GTC | Gain Time Control | 增益时间控制 |
| GTC | Grand Tour Cluster | Grand Tour集群 |
| GTC | Ground Tactical Commander | 地面战术指挥官 |
| GTC | Geologic Testing Consultants (Houston, TX) | 地质测试顾问(德克萨斯州休斯顿) |
| GTC | Green Tea Catechins | 绿茶儿茶素 |
| GTC | General Telephone Company | 通用电话公司 |
| GTC | Gabis Talasith Collective | Gabis Talasith集体 |
| GTC | General Transport Company | 全般运输连 |
| GTC | Green Turtle, Bahamas | 绿海龟,巴哈马 |
| GTC | Gas Treatment Centre | 气体处理中心 |
| GTC | Generic Token Card | 通用令牌卡 |
| GTC | Giant Talking Cow | 巨型会说话的奶牛 |
| GTC | Gas Transportation Company | 天然气运输公司 |
| GTC | Global Touring Challenge | 全球旅游挑战 |
| GTC | General Teachers Council | 普通教师委员会 |
| GTC | Game Tool Chest | 游戏工具箱 |
| GTC | Grand Theft Chicken | 侠盗鸡 |
| GTC | Gifted Talented And Creative | 天才和创造力 |
| GTC | General Trias, Cavite (Philippines) | 甲米地特里亚斯将军(菲律宾) |
| GTC | Good 'Til Cancelled (eBay selling method) | 好的直至取消(易趣卖法) |
| GTC | Goulburn Teachers' College (Australia) | Goulburn师范学院(澳大利亚) |
| GTC | Gradual Transition Coating | 渐变过渡涂层 |
| GTC | General Tenders Committee | 通用招标委员会 |
| GTC | Grand Turismo Concept (PS2 game) | 大赛车概念(PS2游戏) |
| GTC | Gateway Technical College (Wisconsin) | Gateway技术学院(威斯康星州) |
| GTC | Government Travel Card | 政府旅行卡 |
| GTC | Georgian Trade Center (Tbilisi, Georgia) | 格鲁吉亚贸易中心(格鲁吉亚第比利斯) |
| GTC | Gas Turbine Change | 燃气轮机更换 |
| GTC | Good 'Til Canceled | 好的直至取消 |
| GTC | Grav-Tech Canada | Grav Tech加拿大 |
| GTC | Graduate Technology Coordinator | 研究生技术协调员 |
| GTC | Griffin Technical College (Griffin, Georgia, USA) | 格里芬技术学院(美国乔治亚州格里芬) |
| GTC | Gaelic Tugboat Company | 盖尔语拖船公司 |
| GTC | General Therapeutic Class (healthcare code) | 一般治疗类别(医疗保健代码) |
| GTC | General Teaching Council (UK) | 普通教学委员会(英国) |
| GTC | Gran Turismo Competizione (Ferrari) | Gran Turismo Competizione(法拉利) |
| GTC | Guards Tank Corps | 近卫坦克军团 |