| Abbreviation | Definition |
|---|---|
| AFIRM | Autism Focused Intervention Resources Modules |
| AFTS | Autism From The Start |
| AJ | Arthur Jingles |
| ALAW | Autism Living and Working |
| ALEC | Autism and Law Enforcement Coalition |
| ALEC | Autism Law Enforcement Coalition |
| ALP | Autism Learning Partners |
| AMASE | Autistic Mutual Aid Society Edinburgh |
| AMEN | Autism Ministry Exceptional Needs |
| AMICC | Autistic Minority International Coordinating Council |
| ANDI | Autism Network for Dietary Intervention |
| ANI | Autism Network International |
| AOTS | Autism On The Seas |
| AP | Autistic Pony |
| APEP | Autism Parent Education Program |
| APERS | Autism Program Environment Rating Scale |
| APRC | Autism Policy Reform Coalition |
| ARM | Autism rights movement |
| ARP | Autism Research Program |
| ARRO | Autism Research and Resources of Oregon |