| IMGA | Idaho Mint Growers Association | 爱达荷州薄荷种植者协会 |
| IMGA | Iowa Meat Goat Association | 爱荷华肉羊协会 |
| IMGA | International Masters Games Association | 国际大师赛协会 |
| IMGA | International Mounted Games Association | 国际骑马运动会协会 |
| IMGA | International Medical Geology Association | 国际医学地质学协会 |
| IMGA | Illinois Municipal Gas Agency | 伊利诺伊州市政燃气局 |
| IMGA | Intermountain Municipal Gas Agency | 山间市政燃气局 |