| Acronym | Definition |
|---|
| ALDA➣Association of Late-Deafened Adults |
| ALDA➣Association of Local Democracy Agencies (est. 1999) |
| ALDA➣Australian Learning Disability Association |
| ALDA➣Advanced Life Deferred Annuity (insurance) |
| ALDA➣Adult Learning Development Association |
| ALDA➣Asociación Larense de Astronomía (Barquisimeto, Venezuela) |
| ALDA➣Alabama Dietetic Association |
| ALDA➣American Luggage Dealers Association |
| ALDA➣Asociación Latinoamericana de Derecho Ambiental (Mexico) |