| MGR | M G Ramachandran 
| Others |
| MGR | Mac Graphics
| Others |
| MGR | Malayan Grid Reference
| Others |
| MGR | ManaGeR
| Others |
| MGR | Maple Grove Raceway
| Others |
| MGR | Marine and Geology Repository
| Others |
| MGR | Marine Genetic Resource
| Others |
| MGR | Marine Genetic Resources
| Others |
| MGR | Marine Geology Repository
| Others |
| MGR | Martinkiewicz Grover Ras
| Others |
| MGR | Marudhur Gopalan Ramachandran
| Others |
| MGR | Maruthur Gopalan Ramachandran
| Others |
| MGR | Mental Graphemic Representation
| Others |
| MGR | Merry Go Round
| Others |
| MGR | Metal Gear Raiden
| Others |
| MGR | MG Ramachandran
| Others |
| MGR | MGR bitmap file Bitmap graphics
| Others |
| MGR | Michael G Rademaker
| Others |
| MGR | Mid Georgia Respiratory
| Others |
| MGR | Military Grid Reference
| Others |
| MGR | Miss Gulch Returns
| Others |
| MGR | Modular Gauss Rifle
| Others |
| MGR | Monthly Gross Rake
| Others |
| MGR | Monthly Gross Revenue
| Others |
| MGR | More Grace Required
| Others |
| MGR | Much Greater Range
| Others |
| MGR | Multiple Genome Rearrangements
| Others |
| MGR | Music Galaxy Radio
| Others |
| MGR | Mustang Grabber Registry
| Others |
| MGR | Mustard Gas and Roses
| Others |
| MGR | Myotonic Goat Registry
| Others |