ASSI
| Acronym | Definition |
|---|---|
| ASSI | Area of Special Scientific Interest (conservation designation; Northern Ireland, UK) |
| ASSI | Associazione di Storia e Studi Sull'Impresa (Italian: Association of History and Business Studies) |
| ASSI | Association of Small Scale Industries (India) |
| ASSI | Airglow Solar Spectrometer Instrument |
| ASSI | Ab Statens Skogsindustrier |
| ASSI | Additional Special Skill Indicator |
| ASSI | Aerial Scout Sensors Integration |
| ASSI | Arvin Suspension Systems Italy |