| Acronym | Definition |
|---|
| LTU➣Luleå Tekniska Universitet (Luleå University of Technology; formerly Luleå Tekniska Högskola) |
| LTU➣Lithuania |
| LTU➣Lawrence Technological University (Southfield, Michigan) |
| LTU➣La Trobe University (Australia) |
| LTU➣License to Use |
| LTU➣Leeds Trinity University (UK) |
| LTU➣Long-Term Unemployment |
| LTU➣Lufttransport-Unternehmen GmbH (German air transportation company - vacation airline) |
| LTU➣Line Termination Unit |
| LTU➣Learning and Teaching Unit (various universities) |
| LTU➣Land Treatment Unit |
| LTU➣Louisiana Tech University |
| LTU➣Line Terminating Unit |
| LTU➣Littoisten Työväen Urheilijat (Finnish team) |
| LTU➣Laser Transceiver Unit (military aviation) |
| LTU➣Laboratory Test Unit |
| LTU➣Line Test Unit |
| LTU➣Large Tax Payers Unit (Pakistan) |
| LTU➣Load Transfer Unit |
| LTU➣Line Tuning Unit |
| LTU➣Luft-Technische Union (German Tourist Airline) |