| TGA | Tagged Graphics | TGA格式 |
| TGA | Therapeutic Goods Administration | (澳大利亚)治疗产品管理局 |
| TGA | Air Togo (ICAO code) | 多哥航空公司(ICAO代码) |
| TGA | Texas Glass Association | 德克萨斯州玻璃协会 |
| TGA | The Glutamate Association (Washington, DC, USA) | 谷氨酸盐协会(美国华盛顿特区) |
| TGA | Travel Goods Association | 旅游商品协会 |
| TGA | Texas Gelbvieh Association | 德克萨斯州Gelbvieh协会 |
| TGA | Thantos Gaming Association | Thantos游戏协会 |
| TGA | Therapeutic Goods Association | 治疗用品协会 |
| TGA | Triangle Gujarati Association (Raleigh, NC) | 古吉拉特三角协会(北卡罗来纳州罗利) |
| TGA | Texas Golf Association | 德克萨斯州高尔夫协会 |
| TGA | Thermogravimetric Analysis | 热重分析 |
| TGA | thyroglobulin antibody | 甲状腺球蛋白抗体 |
| TGA | The Gersh Agency | 格什机构 |
| TGA | Thermal Analysis | 热分析 |
| TGA | Therapeutic Goods Administration (Australian regulatory body) | 治疗用品管理局(澳大利亚监管机构) |
| TGA | transient global amnesia | 短暂性整体失忆 |
| TGA | Targa (filename extension) | Targa(文件扩展名) |
| TGA | Trans Global Airlines | 环球航空公司 |
| TGA | Transposition of the Greater Arteries (medical) | 大动脉转位(医学) |
| TGA | Trusted Global Advisor | 受信任的全球顾问 |
| TGA | The Grace Accord (band) | 格雷斯协议(乐队) |
| TGA | Traditional Gaussian Approximation | 传统高斯近似 |
| TGA | Truevision Targa format Bitmap graphics | Truevision Targa格式位图图形 |
| TGA | Transposition of the Great Arteries | 大动脉转位 |
| TGA | TransGlutaminase Antibody | 转谷氨酰胺酶抗体 |
| TGA | Tournament Gifts of America (golf) | 美国锦标赛礼品(高尔夫) |
| TGA | The Green Album (Weezer) | 绿色专辑(Weezer) |
| TGA | thioglycollic acid | 巯基乙酸 |
| TGA | Thymine-Guanine-Adenine (stop codone) | 胸腺嘧啶鸟嘌呤腺嘌呤(终止密码子) |
| TGA | The Global Alliance | 全球联盟 |
| TGA | taurocholate gelatin agar | 牛磺胆酸明胶琼脂 |
| TGA | transposition of great arteries | 大动脉转位 |
| TGA | total gonadotrop(h)in activity | 总促性腺激素(h)活性 |
| TGA | Third Go Around | 第三次复飞 |
| TGA | total glycoalkaloids | 总糖生物碱 |
| TGA | tumor glycoprotein assay | 肿瘤糖蛋白测定 |
| TGA | Trace Gas Analysis | 痕量气体分析 |
| TGA | The Genuine Article | 真品 |
| TGA | Truevision Graphics Array | Truevision图形阵列 |
| TGA | The Great Alliance | 大联盟 |
| TGA | Thermal Gravimetrical Analysis | 热重分析 |
| TGA | Text Graphic Adapter | 文本图形适配器 |
| TGA | Take Good Advice | 接受好的建议 |