| Acronym | Definition |
|---|
| LTM | Listening to Music |
| LTM | Long-Term Management |
| LTM | Limited Time Mode (gaming) |
| LTM | Local Traffic Manager (telecommunications) |
| LTM | Latest Twelve Months |
| LTM | Life Time Fitness, Inc (Eden Prairie, MN; stock symbol) |
| LTM | Long Term Memory |
| LTM | Last Twelve Months (finance/investing) |
| LTM | Less than Minimum (purchase quantity) |
| LTM | London Transport Museum (UK) |
| LTM | Lean Tissue Mass |
| LTM | Local Test Manager |
| LTM | Lan Traffic Monitor |
| LTM | Long Term Monitoring |
| LTM | Local Traffic Manager |
| LTM | Lotus Forms |
| LTM | Long Term Management |
| LTM | Load Transformation Matrix |
| LTM | Lie to Me (TV show) |
| LTM | Long-Term Monitoring |
| LTM | Laugh to Myself |
| LTM | Learning through Movement |
| LTM | Language Travel Magazine |
| LTM | Long Term Maintenance |
| LTM | Less Than Major |
| LTM | Lufthansa Technik Malta (joint venture) |
| LTM | Laughing To Myself |
| LTM | Linear Topic Map Notation |
| LTM | Leica Thread Mount (camera system) |
| LTM | Land Transformation Model |
| LTM | Language Training Mission |
| LTM | Liberated to Marry (Quaker religion) |
| LTM | Log Transfer Manager |
| LTM | Lateral Translation Mode |
| LTM | Language Teaching Methodology (linguistics) |
| LTM | Laser Target Marker |
| LTM | Life Time Maximum (insurance expense) |
| LTM | Learning Team Meeting (education) |
| LTM | Leading Track Maintainer |
| LTM | Little Theater of Manchester (Manchester, CT) |
| LTM | Low Tide Mark |
| LTM | Love the Madness |
| LTM | Line and Trunk Maintenance |
| LTM | Loss Tracking Module |
| LTM | Line Terminating Multiplex |
| LTM | Low-Trajectory Missile |
| LTM | Logistics Team Member (US DoD) |
| LTM | Long Term Missionary |
| LTM | Licentiate in Textile Manufacturing |
| LTM | Life Table Model |
| LTM | Late Thursday Morning (band) |
| LTM | Logical Technical Model (computing) |