| Acronym | Definition |
|---|
| IAGC➣International Association of Geophysical Contractors |
| IAGC➣Illinois Association for Gifted Children (est. 1989) |
| IAGC➣International Association of Geochemistry and Cosmochemistry |
| IAGC➣Instantaneous Automatic Gain Control |
| IAGC➣International Age Group Competition (gymnastics) |
| IAGC➣Ingénierie, Approvisionnement et Gestion de Construction (French: Engineering, Procurement and Construction Management) |
| IAGC➣Idaho Association of General Contractors |