| TGI | Terminating Generator Induction | 终止发电机感应 |
| TGI | Two Girls Impoverished | 两个贫穷的女孩 |
| TGI | Total Game Improvement | 总体游戏改进 |
| TGI | Tingo Maria, Peru | Tingo Maria，秘鲁 |
| TGI | Thank God It's | 感谢上帝,它的 |
| TGI | The Grand Inquisitor | 宗教大法官 |
| TGI | Track Gauge Irregularities | 轨距不规则 |
| TGI | Thaddeus Gustav Ignacius | 塔迪乌斯·古斯塔夫·伊格纳修斯 |
| TGI | Track Gauge Irregularity | 轨距不规则 |
| TGI | Tribunal de Grande Instance | 大审法庭 |
| TGI | Task Group Index | 任务组索引 |
| TGI | Thank God It's Friday (US restaurant chain) | 感谢上帝,今天是星期五(美国餐饮连锁) |
| TGI | Transportadora de Gas del Interior SA (Colombia) | 内部天然气运输公司（哥伦比亚） |
| TGI | Trato Gastrointestinal (Portugese) | Trato胃肠道（葡萄牙语） |
| TGI | Technical Guidance Instruction | 技术指导说明 |
| TGI | Target Group Index | 目标组索引 |
| TGI | Task Group Instruction (US Navy) | 任务组指令（美国海军） |
| TGI | Tide Gauge Inspectorate | 验潮器检查员 |
| TGI | Travel Guard International Insurance Brokerage, Inc. | Travel Guard International Insurance Brokerage公司。 |
| TGI | IEEE 802.11i Task Group | IEEE 802.11i任务组 |
| TGI | Tire Guides, Inc. | 轮胎指南公司。 |
| TGI | Tumor Growth Inhibition | 肿瘤生长抑制 |
| TGI | Tracheal Gas Insufflation | 气管气体吸入 |
| TGI | Thyroid Growth-stimulating Immunoglobulin | 甲状腺生长刺激免疫球蛋白 |
| TGI | Triumph Group, Inc. | 黛安芬集团。 |
| TGI | thrombinogenesis index | 凝血酶生成指数 |
| TGI | thyroid growth antibodies or immunoglobulins | 甲状腺生长抗体或免疫球蛋白 |
| TGI | tuberculin globuilnous | 球球结核菌素 |