| Acronym | Definition |
|---|
| AIGS➣Asian Institute of Gemological Sciences (Bangkok, Thailand) |
| AIGS➣Australian Institute of Genealogical Studies (est. 1973) |
| AIGS➣Auxiliary Inerting Gas Subsystem |
| AIGS➣Abnormal Impulse-Generating Site (nerves) |
| AIGS➣Acoustic Intelligence Gathering System |