| Acronym | Definition |
|---|
| LLT | Language Learning and Teaching |
| LLT | Lipid-Lowering Therapy (cardiology) |
| LLT | Luminox Light Technology (watches) |
| LLT | Local Loop Technologies |
| LLT | Language Learning & Technology |
| LLT | Leadership Little Traverse (Petoskey Chamber of Commerce; Petoskey, MI) |
| LLT | Long Lead Time |
| LLT | Low Latency Transport |
| LLT | Long Lived Transaction (computing) |
| LLT | Lucas-Lehmer Primality (mathematics) |
| LLT | Link Local Inhibit Test (SS7) |
| LLT | Link Layer Topology |
| LLT | Liberty Lines Transit, Inc |
| LLT | Later Life Training (UK) |
| LLT | Low-Level Terminal |
| LLT | Limited Licensed Technician |
| LLT | Low Level Trajectory |