| LTT | Lactose Tolerance Test 
| Others |
| LTT | Lancastrian Transport Trust
| Others |
| LTT | Land Transaction Tax
| Others |
| LTT | Land Transfer Tax
| Others |
| LTT | Latency Transfer Time
| Others |
| LTT | Learning Through Teaching
| Others |
| LTT | Learning Through Technology
| Others |
| LTT | Left Turning Tendency
| Others |
| LTT | Let Them Talk
| Others |
| LTT | Lexical Token Type
| Others |
| LTT | Liberty Tree Tavern
| Others |
| LTT | Libya Telecom & Technology
| Others |
| LTT | Libya Telecom and Technology
| Others |
| LTT | Libyan Telecom and Technology
| Others |
| LTT | Libyan Telecommunications and Technology
| Others |
| LTT | Libyan Telecommunications and Technology (now part of General Post and Telecommunication Company)
| Others |
| LTT | Life Time Tax
| Others |
| LTT | Light Tire Technology
| Others |
| LTT | Light Triggered Thyristor
| Others |
| LTT | Light Truck Tire
| Others |
| LTT | Line To Take
| Others |
| LTT | Lingenfelter Twin Turbo
| Others |
| LTT | Linus Tech Tips
| Others |
| LTT | Linux Trace Toolkit
| Others |
| LTT | Literacy Training Techniques
| Others |
| LTT | Local Transport Termination
| Others |
| LTT | Lock Tag Try
| Others |
| LTT | Logical Terminal Table
| Others |
| LTT | Logistics Transportation and Traffic
| Others |
| LTT | Lokmanya Tilak Terminus
| Others |
| LTT | Long Term Test
| Others |
| LTT | Long Term Training
| Others |
| LTT | Long Term Trend
| Others |
| LTT | Loss To Theater
| Others |
| LTT | Luen Thung Transport
| Others |
| LTT | Lufthansa Technical Training
| Others |
| LTT | Lupin the Thief
| Others |
| LTT | Luyten Two Tenths
| Others |
| LTT | Lymphocyte Transformation Test
| Others |
| LTT | Lymphocyte Transformation Testing
| Others |
| LTT | Talonas
| Others |