| Abbreviation | Definition |
|---|---|
| IAVS | Irish Anti Vivisection Society |
| IAWM | International Alliance for Women in Music |
| IAWS | Indo American Wildlife Society |
| IAWS | Ios Animal Welfare Society |
| IAZ | 564C=0@>4=0O :045<8O &8B>;>388 |
| IAZ | Academia Internacional de Citologa |
| IAZ | Academia Internacional de Citología |
| IAZ | Académie Internationale de Cytologie |
| IAZ | Acadmie Internationale de Cytologie |
| IAZ | International Academy of Cytology |
| IAZ | Internationale Akademie fr Zytologie |
| IAZ | ý›0Þf |
| IBA | Brazilian Institute of Actuarial Science |
| IBA | Instituto Brasileiro de Atuária |
| IBA | Instituto Brasileiro de Aturia |
| IBA | International Bryozoology Association |
| IBANGS | International Behavioural and Neural Genetics Society |
| IBBS | International Biodeterioration Biodegradation Society |
| IBBS | International Brain Barriers Society |
| IBES | Institute at Brown for Environment and Society |