| Acronym | Definition |
|---|
| AMBI➣American Bittern (birds) |
| AMBI➣Alden March Bioethics Institute (est. 2005; Albany, NY) |
| AMBI➣Alliance of Multicultural Bisexuals (Washington, DC) |
| AMBI➣A Marine Biotic Index |
| AMBI➣Advanced Methods for Building Diagnostics and Maintenance (EU project) |
| AMBI➣Association of Merchant Bankers of India (Securities Exchange Board of India) |
| AMBI➣Acute Multiple Brain Infarction |
| AMBI➣Associação Médica Brasileira Iridologia |