| Acronym | Definition |
|---|
| LIA | Laser Institute of America |
| LIA | Little Ice Age |
| LIA | Life in Africa (Uganda) |
| LIA | Life Insurance Association (various nations) |
| LIA | Long Island Association, Inc. (Melville, NY) |
| LIA | Libyan Investment Authority (sovereign wealth fund) |
| LIA | London International Awards (annual) |
| LIA | Labrador Inuit Association |
| LIA | Lock in Amplifier |
| LIA | Logistics Innovation Agency (replaces the Logistics Integration Agency) |
| LIA | Logistics Integration Agency |
| LIA | Leather Industries of America |
| LIA | Life Imitating Art |
| LIA | Live Impact Area |
| LIA | Liability Insurance Administrators |
| LIA | Licensed Insurance Advisor |
| LIA | Licensed Insurance Agent |
| LIA | Literacy in Action (Quebec, Canada) |
| LIA | Line Immuno Assay |
| LIA | Lost in Action |
| LIA | Lead Industries Association, Inc. |
| LIA | Linear Integer Arithmetic (programming calculus) |
| LIA | Local Issuing Authority |
| LIA | Liangping Airport (China) |
| LIA | Leicester Islamic Academy (UK) |
| LIA | Leadership Idaho Agriculture |
| LIA | Least Interference Algorithm |
| LIA | Local Infiltration Analgesia (treatment method) |
| LIA | Linguistic Iconism Association |
| LIA | London International Academy (Canada) |
| LIA | Landscape Impact Assessment |
| LIA | Learning Into Action (Skagit Valley College, WA) |
| LIA | Logistics Impact Analysis |
| LIA | Leave with Income Averaging (Canada) |
| LIA | Link Interface Assembly (TCDL) |
| LIA | Lost in Appleton (website) |
| LIA | Levels of Importance Assigned |
| LIA | Limiting Input Amplifier |
| LIA | Linear Inequality Analysis |
| LIA | Land Inventory Analysis |
| LIA | Long Island Academy (Beaumont, Newfoundland, Canada) |
| LIA | Leeward Islands Air Transport, Antigua and Barbuda (ICAO code) |
| LIA | Line Item Accounting |
| LIA | Luton International Airport (UK) |
| LIA | Low in Aromatics (chemistry) |
| LIA | LWS (Long Wavelength Spectrometer) Interactive Analysis (Infrared Space Observatory software) |
| LIA | Legislative Instruments Act (Australia) |