| 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 |