| ARMA | Abbreviation ARMA means Association 
| Others |
| ARMA | Accumulator Reservoir Manifold Assembly
| Others |
| ARMA | Agung Rai Museum Of Art
| Others |
| ARMA | American Radio Manufacturers Association
| Others |
| ARMA | American Records Management Association
| Others |
| ARMA | American Registry of Medical Assistants
| Others |
| ARMA | American Reiki Masters Association
| Others |
| ARMA | American Rock Mechanics Association
| Others |
| ARMA | Anglican Renewal Ministries Australia
| Others |
| ARMA | Asphalt Roofing Manufacturers Association
| Others |
| ARMA | Association for Renaissance Martial Arts
| Others |
| ARMA | Association of Records Managers Administrators
| Others |
| ARMA | Association of Records Managers and Administrators
| Others |
| ARMA | Association of Renaissance Martial Artists
| Others |
| ARMA | Association of Russian Marriage Agencies
| Others |
| ARMA | Austin Regional Manufacturers Association
| Others |
| ARMA | Australian Recreational Motorists Association
| Others |
| ARMA | Auto Regression Moving Average
| Others |
| ARMA | Auto Regressive Moving Average
| Others |
| ARMA | Automatic Request Management App
| Others |
| ARMA | Autoregressive Moving Average
| Others |