| Acronym | Definition |
|---|
| MCGA | Multi-Color Graphics Array (640 by 480 pixels, 2 colors; 1.33:1 or 320 by 200 pixels, 256 colors; 1.60:1) |
| MCGA | Maritime and Coastguard Agency (UK) |
| MCGA | Make Canada Great Again (slogan) |
| MCGA | Multi Cast Group Agent |
| MCGA | Multi Color Graphics Array |
| MCGA | Minnesota Corn Growers Association |
| MCGA | Missouri Corn Growers Association |
| MCGA | Manitoba Canola Growers Association (Canada) |
| MCGA | Multi-Color Graphics Adapter |
| MCGA | Michigan Corn Growers Association |
| MCGA | Mid-Columbia Gymnastics Academy (Washington state, USA) |
| MCGA | Maine Cranberry Growers Association |
| MCGA | Monochrome & Color Graphics Adapter |
| MCGA | Multicast Group Agent |
| MCGA | Michael Coventon Golf Academy (Austria) |
| MCGA | MultiLayer Column Grid Array |
| MCGA | Mennonite Church General Assembly |