| Acronym | Definition |
|---|
| BSIA | British Security Industry Association (UK) |
| BSIA | Beijing Software Industry Association (China) |
| BSIA | British Security Industry Authority |
| BSIA | British Starch Industry Association |
| BSIA | Beijing Semiconductor Industry Association (China) |
| BSIA | Bible Society in Australia |
| BSIA | Bachelor of Science in Information Assurance |
| BSIA | Base Station Interface Adaptation |
| BSIA | Bereavement Services Industries Association (UK) |
| BSIA | Bangladesh Sick Industries Association |
| BSIA | Bulk Stable Isotope Analysis |
| BSIA | Bachelor of Science in Industrial Arts |
| BSIA | Best Scientific Information Available |
| BSIA | British Standards Institute Association |
| BSIA | Belarusian Scientific-Industrial Association |
| BSIA | BioScience Intelligence Advisors, LLC |
| BSIA | Botanical Special Interest Areas |
| BSIA | Bridge Set Infantry Assault |
| BSIA | Behavior Science in the Information Age (course) |
| BSIA | Barrington Square Improvement Association (Hoffman Estates, IL) |
| BSIA | Bulk Sample Isotope Analysis |
| BSIA | Building Surveyors Institute of Australia |
| BSIA | Black Sea Information Alliance |
| BSIA | Building Social Inclusion in Australia |
| BSIA | Basic Skills Independent Assessments (UK) |
| BSIA | Brockhall Ship Insurance Agency (UK) |
| BSIA | burst-suppression-isoflurane-anaesthesia |
| BSIA | Baghdad-Saddam International Airport |
| BSIA | Binding Site Improvement Agreement |