| MCGA | Machine coded genetic algorithm 
| Others |
| MCGA | Magnus Chase and the Gods of Asgard
| Others |
| MCGA | Manitoba Canola Growers Association
| Others |
| MCGA | Manitoba Common Ground Alliance
| Others |
| MCGA | Manitoba Corn Growers Association
| Others |
| MCGA | Mason County Growth Alliance
| Others |
| MCGA | Master of Computer Graphics and Animation
| Others |
| MCGA | Masters Certificate in Global Affairs
| Others |
| MCGA | Memory Controller Gate Array
| Others |
| MCGA | Mendocino County Growers Alliance
| Others |
| MCGA | Michigan Cancer Genetics Alliance
| Others |
| MCGA | Michigan Corn Growers Association
| Others |
| MCGA | Mid Columbia Gymnastics Academy
| Others |
| MCGA | Minnesota Corn Growers Association
| Others |
| MCGA | Missouri Corn Growers Association
| Others |
| MCGA | Monochrome Color Graphics Adapter
| Others |
| MCGA | Monte Carlo genetic algorithm
| Others |
| MCGA | Mount Carmel Guild Academy
| Others |
| MCGA | Multi Cast Group Agent
| Others |
| MCGA | Multi Color Graphics Array
| Others |
| MCGA | Multi-Color Graphics Array
| Others |
| MCGA | MultiColour Graphics Array
| Others |
| MCGA | MultiLayer Column Grid Array
| Others |
| MCGA | Music City Golf Association
| Others |