| Acronym | Definition |
|---|
| SLAA | Sex and Love Addicts Anonymous |
| SLAA | Stichting Literaire Activiteiten Amsterdam (Netherlands) |
| SLAA | Society for Latin American Anthropology |
| SLAA | St. Louis Apartment Association |
| SLAA | State Library Administrative Agency |
| SLAA | State Legal Admission Authority (Australia) |
| SLAA | Second Language Acquisition and Application |
| SLAA | Sierra Leone Airports Authority |
| SLAA | St. Louis Attractions Association |
| SLAA | St. Lucia Agriculturists Association |
| SLAA | SecureLogin Advanced Authentication (Protocom) |
| SLAA | Sebago Lake Anglers Association (Maine) |
| SLAA | St. Louis Arborists Association (St. Louis, MO, USA) |
| SLAA | Street Level Artist Agency |
| SLAA | Saint Louis Airport Authority |
| SLAA | San Leandro Art Association (San Leandro, CA) |
| SLAA | Southern Lehigh Athletic Association |
| SLAA | Saint Louis Alzheimer's Association |
| SLAA | Second Los Angeles Aqueduct (Los Angeles Department of Water and Power; California) |
| SLAA | Salt Lake Airport Authority (Utah) |