ICGA
| Acronym | Definition |
|---|---|
| ICGA | International Conference on Genetic Algorithms |
| ICGA | Independent Certified Gemologist Appraiser (American Gem Society) |
| ICGA | International Computer Games Association (formerly International Computer Chess Association) |
| ICGA | Iowa Corn Growers Association |
| ICGA | Illinois Corn Growers Association |
| ICGA | Islamic Center of Greater Austin (Texas) |
| ICGA | International Colored Gemstone Association |
| ICGA | International Carnival Glass Association |