ARSI
| 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 |