SIAR
| Acronym | Definition |
|---|---|
| SIAR | Sids Initial Assessment Report |
| SIAR | Stockholm International Arbitration Review (Juris Publishing) |
| SIAR | Swiss Institute for Art Research (Zurich, Switzerland) |
| SIAR | Saluran Informasi Akar Rumput (Indonesian: Grassroots Information Channel; broadcasting) |
| SIAR | Step-In Assistant Referee (soccer) |
| SIAR | Software Installation Audit Report |