| TBU | tert-butyl | 叔丁基 |
| TBU | Nuku Alofa/Tongatapu, Tonga - International (Airport Code) | Nuku Alofa / Tongatapu,汤加(机场) |
| TBU | TeamBuilding Unlimited | 团队建设无限 |
| TBU | Tie Bar Unit | 拉杆装置 |
| TBU | Tongatapu International Airport, Tongatapu, Tonga Islands, South Pacific | 南太平洋汤加群岛汤加塔普国际机场 |
| TBU | Tape Backup Unit | 磁带备份单元 |
| TBU | This Binary Universe (band) | 这个二元宇宙(波段) |
| TBU | True But Useless | 真实但无用 |
| TBU | Time Base Unit (microcontroller) | 时基单元(微控制器) |
| TBU | Telephone Balancing Unit | 电话平衡单元 |
| TBU | tuberculosis activity uncertain | 结核病活动不确定 |
| TBU | Test By User | 按用户测试 |
| TBU | Telemetry Buffer Unit | 遥测缓冲单元 |
| TBU | Trinity Biblical University | 三一圣经大学 |
| TBU | Tertiary Butyl (chemistry) | 叔丁基(化学) |
| TBU | Terminal Buffer Unit | 终端缓冲单元 |
| TBU | To Be Updated | 待更新 |
| TBU | Telephone Balance Unit (broadcast radio industry) | 电话平衡单元(广播无线电行业) |
| TBU | Test Before Using | 使用前测试 |
| TBU | Technical Business Unit | 技术业务部门 |
| TBU | Transient Blocking Unit | 瞬态阻断装置 |
| TBU | Technisch Bureau Uittenbogaart (Netherlands) | 技术局Uitenbogaart(荷兰) |
| TBU | Tomas Bata University (Czech Republic, Zlin) | 托马斯巴塔大学(捷克共和国,兹林) |