| Acronym | Definition |
|---|
| INAA➣Instrumental Neutron Activation Analysis |
| INAA➣Intelligent Network Access Arrangement |
| INAA➣I Need an Appointment (online booking portal; UK) |
| INAA➣Islamic National Accord Association |
| INAA➣International Network of Accountants and Auditors (est. 1992; Edinburgh, Scotland, UK) |
| INAA➣Induced Neutron Activation Analysis (physics) |
| INAA➣Immigration and Nationality Act Amendments of 1986 (US Citizenship and Immigration Services) |
| INAA➣Integrated Network Access Arrangement |