| Acronym | Definition |
|---|
| IAN➣i am nothing |
| IAN➣Interim Advice Note (various locations) |
| IAN➣Inferior Alveolar Nerve |
| IAN➣Instantni Astronomicke Noviny (Czech: Instant Astronomical Newspaper) |
| IAN➣Independent Author Network (community) |
| IAN➣Imperial Andermani Navy (Honor Harrington science fiction novels) |
| IAN➣Interactive Autism Network (online project) |
| IAN➣Interactive Affiliate Network |
| IAN➣Instrumentation & Automation News |
| IAN➣Internet Area Network |
| IAN➣International Agency Network (overseas property) |
| IAN➣Ianuarius (Latin: January) |
| IAN➣Incident Area Network |
| IAN➣Intelligent Access Network (ADC) |
| IAN➣Issuer Alternative Name |
| IAN➣International Accounting Network |
| IAN➣Instituto Agronomico Nacional (Paraguay) |
| IAN➣Indicated Admission Number (UK schools) |
| IAN➣Interest Arrears Note |
| IAN➣Instituto Argentino de Navegación |
| IAN➣Installation After Next |