| Acronym | Definition |
|---|
| ARSI➣Archivum Romanum Societatis Iesu (Latin: Archives of the Roman Society of Jesus) |
| ARSI➣Association de Recherche en Soins Infirmiers |
| ARSI➣Appalachian Rural Systemic Initiative (educational initiative) |
| ARSI➣Amateur Radio Society of India |
| ARSI➣Aerospace Research Systems, Inc. |
| ARSI➣Atmospheric Research System |
| ARSI➣ARPA Reconfigurable Simulator Initiative |