| TDK | The Dark Knights (gaming clan) | 黑暗骑士（游戏家族） |
| TDK | The Death Knights | 死亡骑士团 |
| TDK | Tokyo Denkikagaku Kogyo KK (TDK Electronics Co. Ltd., Japanese manufacturer of recording media) | Tokyo Denkikakaku Kogyo KK（日本记录媒体制造商TDK Electronics Co.Ltd.） |
| TDK | Total Duchenne Knockout | Duchenne淘汰总数 |
| TDK | Those Darn Kids (Improv Group) | 那些危险的孩子（即兴组合） |
| TDK | Tau Delta Kappa | Tau Delta Kappa河 |
| TDK | Trinitys Dark Killers | Trinitys黑暗杀手 |
| TDK | TÜrk Dil Kurumu (Turkish Language Council) | TÜrk Dil Kurumu (Turkish Language Council) |
| TDK | Tokyo Denki Kagaku | 东京Denki Kagaku |
| TDK | Total Death Killers | 死亡杀手总数 |
| TDK | Turbine Development Kit | 涡轮机开发套件 |
| TDK | Turbo Debugger Keystroke recording file | Turbo调试器按键记录文件 |
| TDK | Track Developers Kit | 跟踪开发者工具包 |
| TDK | T D K ( Tokyo Denki Kagaku) Corporation | T D K（Tokyo Denki Kagaku）公司 |
| TDK | Triumphant Death Kite | 凯旋死亡风筝 |
| TDK | Technically Designed Killers (gaming clan) | 技术设计杀手（游戏族） |
| TDK | Two Dimensional Kinetics (liquid rocket engine performance computer program) | 二维动力学（液体火箭发动机性能计算机程序） |