| Abbreviation | Definition |
|---|---|
| MGK | Maschinen Gewehr Kompagnie |
| MGK | McLaughlin Gormley King Company |
| MGK | Michael G. Kavuklis |
| MGL | Mascon Global Limited |
| MGL | Metro Group Logistics, GMBH |
| MGLA | Mansergh Graham Landscape Architecture |
| MGLD | Mark Gebbie Landscape Design |
| MGLG | Moor Green Lakes Group |
| MGLS | Magellan Green Light Solutions |
| MGLS | Michael G. Lewis & Son, Estate Agents |
| MGLS | Millenium Gold Leaf Studio |
| MGLV | Model Graphics of Las Vegas |
| MGM | Metro Goldwyn Mayer |
| MGM | Michael Galinski Motorradsport |
| MGMCL | Maddhapara Granite Mining Company Limited |
| MGMCL | Maddhyapara Granite Mining Co Ltd |
| MGMCL | Maddhyapara Granite Mining Company Ltd |
| MGN | Mirror Group Newspapers |
| MGNE | Monotype Guild of New England |
| MGO | Metal Gear Online |