| Acronym | Definition |
|---|
| AL | Alabama (US postal abbreviation) |
| AL | Arab League |
| AL | American League (baseball) |
| AL | Action Level (OSHA) |
| AL | Alberta |
| AL | American Libraries (American Library Association journal) |
| AL | Abraham Lincoln (1809-1865; 16th President of the United States) |
| AL | Albania |
| AL | Aluminum |
| AL | Application Layer |
| AL | Annual Leave |
| AL | Artificial Life |
| AL | Assisted Living |
| AL | Assembly Language |
| AL | Air Land |
| AL | Alteration |
| AL | American Legion |
| AL | Aluminium |
| AL | Alessandria (Piemonte, Italy) |
| AL | Adult Language |
| AL | Alameda (Portuguese: tree-lined avenue; postal use) |
| AL | Acceptable Level |
| AL | Awami League (Bangladesh) |
| AL | Administrative Leave |
| AL | St. Albans (postcode for a village) |
| AL | Altec Lansing |
| AL | Alagoas (Brazil) |
| AL | Air Liquide |
| AL | Air Lift |
| AL | American Legend |
| AL | Axial Length |
| AL | Accelerated Learning |
| AL | Active Link (logical communications circuit) |
| AL | Alsace-Lorraine |
| AL | Atomic Learning |
| AL | Lightship |
| AL | Anglers' Legacy |
| AL | Air Leakage |
| AL | Ashok Leyland (India) |
| AL | Analytical Laboratories |
| AL | Air Lock |
| AL | Age Location (Internet chat) |
| AL | Access Line (FS-1037c) |
| AL | Angelic Layer (manga/anime) |
| AL | Apache Longbow (Attack Helicopter) |
| AL | Air Lingus (Irish Airline) |
| AL | Approach and Landing |
| AL | Alliance Leader (Starkingdoms online game) |
| AL | Android Lust (band) |
| AL | Adaptation Layer |
| AL | Ames Laboratory |
| AL | Antennal Lobe |
| AL | Alarm Light (NEC) |
| AL | Agency Liaison |
| AL | Additional Listing |
| AL | Armstrong Laboratory |
| AL | Action Limit (NREL) |
| AL | Acceptable Language |
| AL | Ada Language |
| AL | Answer List |
| AL | Auxiliary Lighting |
| AL | Armor Level (gaming, Asheron's Call) |
| AL | Aeronomy Laboratory |
| AL | Academic Link |
| AL | Albuquerque Operations Office (US DOE) |
| AL | Advanced Leader (Toastmasters) |
| AL | Allowance List |
| AL | Attoliter (10 E^-18, one quintillionth) |
| AL | Acceptance Limit |
| AL | Analytical Limit |
| AL | Analog Loopback (diagnostic test) |
| AL | Autonomic Logistics |
| AL | Anno Lucis |
| AL | Absolute Latency |
| AL | Asian Littoral |
| AL | Analog Link |
| AL | Armor Locking (gaming) |
| AL | Aster Leafhopper |
| AL | Astronautics Laboratory |
| AL | Acquisition Logistician |
| AL | Armament Laboratory |
| AL | Airloop (AT&T) |
| AL | Arbitration Lost |
| AL | Apparatus List |
| AL | Account Librarian |
| AL | Aphus Lassel (gaming, Asheron's Call) |
| AL | Assisting Layer |
| AL | Authorized Leave with Pay |
| AL | Amendment Leaflet |
| AL | Arrival Locator |
| AL | Auroral Electrojet index lower |