| Abbreviation | Definition |
|---|---|
| ALHOA | Arizona Local Health Officers Association |
| ALIA | Australian Library and Information Association |
| ALJ | Association Loisirs Jeunesse |
| ALK | Association luxembourgeoise des kinésithérapeutes |
| ALMA | Association of Loudspeaker Manufacturing & Acoustics |
| ALOA | Allegheny Lacrosse Officials Association |
| ALOA | American Lingual Orthodontic Association |
| ALOA | American Lingual Orthodontics Association |
| ALOC | Association of Law Officers of the Crown |
| ALOHA | Adult Loss of Hearing Association |
| ALP | Association of Labour Providers |
| ALP | Association of Leadership Programs |
| ALP | Association of Learning Providers |
| ALP | Association of Legal Professionals |
| ALP | Association of Lodging Professionals |
| ALPA | Air Line Pilots Association, |
| ALPA | Arnhem Land Progress Association |
| ALPA | Association of Latino Princeton Alumni |
| ALPB | ASSOCIATION of LOW POWER BROADCASTERS |
| ALPC | Association Luxembourgeoise des Pédagogues Curatifs |