| Acronym | Definition |
|---|
| LAR | Libyan Arab Republic |
| LAR | Liquid Argon |
| LAR | Leaf Area Ratio |
| LAR | Light Armored Reconnaissance |
| LAR | Loan/Application Register |
| LAR | Latin American Region |
| LAR | License Amendment Request |
| LAR | Long-Acting Release |
| LAR | Light Automatic Rifle |
| LAR | Legally Authorized Representative |
| LAR | Large Account Reseller |
| LAR | Love and Rockets (band) |
| LAR | Large Account Reseller(s) |
| LAR | Legislative Appropriations Request (Texas) |
| LAR | Lift-and-Rotate (industrial device) |
| LAR | Location-Aided Routing |
| LAR | Low Anterior Resection (of colon) |
| LAR | Lab Animal Resources (various schools) |
| LAR | Logistics Assistance Representative |
| LAR | Load Access Rights |
| LAR | Legal Amount Recognition (remittance/lockbox processing) |
| LAR | Light Artillery Rocket |
| LAR | Lower American River (California) |
| LAR | Love Amongst Ruin (band) |
| LAR | Light Assault Rifle |
| LAR | Late-Phase Asthmatic Reaction |
| LAR | Loyal American Regiment (American revolution) |
| LAR | Leucoanthocyanidin Reductase (enzyme) |
| LAR | Large Adaptive Reflector (antenna) |
| LAR | Log Area Ratio |
| LAR | Launch Acceptability Region (USAF) |
| LAR | Leitungsanlagenrichtlinie (German Code of Practice) |
| LAR | Leader Auto Resources (automobile aftermarket purchasing co-op, Canada) |
| LAR | Laramie, WY, USA - General Brees Field (Airport Code) |
| LAR | Local Acquisition Radar |
| LAR | Liniile Aeriene Romane (Romanian: Romanian Airlines; est. 1975) |
| LAR | Lowest Acceptable Revision (manufacturing) |
| LAR | Letter of Assumption of Responsibility (domain names) |
| LAR | Luftwaffenausbildungsregiment (German Air Force; LWAUSBRGT) |
| LAR | Lot Acceptance Rate |
| LAR | Local Access Resale |
| LAR | Live Animal Regulation (transport regulation) |
| LAR | Liaison Action Record |
| LAR | Liferay Archive |
| LAR | Logistics Assessment Review |
| LAR | Liaison Action Request |
| LAR | Little Apostles of Redemption |
| LAR | Liberty Acres Rabbitry (Ohio) |
| LAR | Logistics Area Representative |
| LAR | Lancer Assault Rifle (gaming) |
| LAR | Luis Antonio Renteria (LAR Games) |
| LAR | Look-Ahead Report |
| LAR | Laboratorio Analisi e Ricerche (Italian: analysis and research lab) |
| LAR | Light Attack Reconnaissance |
| LAR | Local Acquisition Representative |
| LAR | Leaflet Artillery Round |
| LAR | Little America Records, LLC |
| LAR | Logistics Assistance Resource |
| LAR | Launch Associated Railcar |
| LAR | Lattice Aided Reduction |
| LAR | Learning, Actions, Results |
| LAR | Lateral Acceleration for Rollover (automobile performance testing) |
| LAR | Lowest Acceptable Rate |