| TDU | T1 Distribution Unit 
| Others |
| TDU | Tactical Decryptor Unit
| Others |
| TDU | Tactical Dress Uniform
| Others |
| TDU | Tactical Duty Uniform
| Others |
| TDU | Tandem Dwelling Unit
| Others |
| TDU | Taylor Down Under
| Others |
| TDU | Teamsters for a Democratic Union
| Others |
| TDU | Technology Down Under
| Others |
| TDU | Telephone Disconnect Unit
| Others |
| TDU | Telesoftware Data Unit
| Others |
| TDU | Termination and Distribution Unit
| Others |
| TDU | Test Drive Unlimited
| Others |
| TDU | The Dream Unfinished
| Others |
| TDU | Thematic Digital Universities
| Others |
| TDU | Therapeutic Diversion Units
| Others |
| TDU | Therapy Dogs United
| Others |
| TDU | Thermal Desorption Unit
| Others |
| TDU | Thermal Display Unit
| Others |
| TDU | Time Delay Unit
| Others |
| TDU | Time Delay Units
| Others |
| TDU | Time Display Unit
| Others |
| TDU | Title Description and URL
| Others |
| TDU | Tongue Display Unit
| Others |
| TDU | Too Dumb to Understand
| Others |
| TDU | Tool Deployment Unit
| Others |
| TDU | Tour Down Under
| Others |
| TDU | Tracking Data Unit
| Others |
| TDU | Tracking Dog Urban
| Others |
| TDU | Transfer of Density Units
| Others |
| TDU | Transmission & Distribution Utility
| Others |
| TDU | Transmission And Delivery Utility
| Others |
| TDU | Transmission And Distribution Utility
| Others |
| TDU | Transmission Dependent Utility
| Others |
| TDU | Transmission Distribution Utility
| Others |
| TDU | Trash Disposal Unit
| Others |
| TDU | Trucking Down Under
| Others |