English abbreviations from ain to air
- AIN (Wainwright Airport (FAA: AWI))
- AINC (Army Interoperability Network Center)
- AINET (Advocates International Network)
- AINS (Austrian Institute for Nonlinear Studies)
- AINSEE (Academic Information Network of South East Europe)
- AIO (Atlantic Municipal Airport)
- AIOU (Allama Iqbal Open University)
- AIP (Acute intermittent porphyria)
- AIPAC (American Israel Public Affairs Committee)
- AIPB (American Institute for the Prevention of Blindness)
- AIPD (Army Institute for Professional Development)
- AIPET (Almaty Institute of Power Engineering and Telecommunications)
- AIPM (American Institute for Preventive Medicine)
- AIPMT (All-India Pre-Medical Test)
- AIPP (Army Industrial Preparedness Program)
- AIPS (Advanced Integrated Propulsion System (US))
- AIQ (Artificial Intelligence Quotient)
- AIQC (Antiterrorism Instructor Qualification Course)
- AIR (Aircraft Inventory Record)
