| Abbreviation | Definition |
|---|---|
| ABM | Antique Boat Museum |
| ACA | Association of Canadian Archivists |
| ACAM | American Classic Arcade Museum |
| ACAM | Atlantic Canada Aviation Museum |
| ACCA | Australian Centre for Contemporary Art |
| ACD | Auburn Cord Duesenberg |
| ACHS | Adair County Historical Society |
| ACMM | Allihies Copper Mine Museum |
| ACMS | Art Collection Management System |
| ACMS | Australian Computer Museum Society |
| ACOF | A Century Of Flight |
| ADRM | Air Defence Radar Museum |
| AEPM | Association of European Printing Museums |
| AFAM | American Folk Art Museum |
| AFFM | Australian Federation of Friends of Museums |
| AFGA | Achenbach Foundation for Graphic Arts |
| AFHM | Armed Forces Heritage Museum |
| AFIM | American Friends of the Israel Museum |
| AFM | Air Force Museum |
| AGMI | Armenian Genocide Museum and Institute |