| Acronym | Definition |
|---|
| LTO | Linear Tape-Open (tape storage technology) |
| LTO | Lift Truck Operator |
| LTO | Light Tight Oil |
| LTO | Land Transportation Office (Philippines) |
| LTO | Lab Tests Online (various locations) |
| LTO | Long Term Outcome |
| LTO | Long Term Operations |
| LTO | Literal Table Overflow |
| LTO | Linear Tape Open |
| LTO | Limited-Time Offer(ing) |
| LTO | Licence to Occupy (contracts) |
| LTO | Limited Time Only |
| LTO | Long-Term Observers |
| LTO | Long-Term Operation (environmental safety) |
| LTO | Land Titles Office (NSW, Australia) |
| LTO | Long-Term Orbit (GPS) |
| LTO | Low Temperature Oxidation |
| LTO | Loreto, Baja California Sur, Mexico (Airport Code) |
| LTO | Long-Term Occasional (teaching vacancy) |
| LTO | Lettuce, Tomato, and Onion |
| LTO | Language Teaching Organization |
| LTO | Licence To Operate |
| LTO | Landing-Takeoff Cycle |
| LTO | Large Taxpayers Office |
| LTO | Lithium Titanium Oxide (battery) |
| LTO | Land and Transportation Office (Philippines) |
| LTO | Lease-To-Ownership |
| LTO | Last Time Order |
| LTO | Laboratory Training Office |
| LTO | Logistics Task Order |
| LTO | Language and Technology Office |
| LTO | Linking Technology and Order |
| LTO | Local Terminal Operator |
| LTO | Local Telecom Operator (telecommunications) |