| Acronym | Definition |
|---|
| IAGA➣International Association of Geomagnetism and Aeronomy |
| IAGA➣International Association of Golf Administrators |
| IAGA➣International Association of Gaming Advisors (est. 1980; Las Vegas, NV) |
| IAGA➣Iowa Amputee Golf Association |
| IAGA➣Israeli Association of General Aviation (est. 1976) |
| IAGA➣Integrated Adaptive Genetic Algorithm (computer science) |