M. G. Ramachandran (1917–1987) was the former Chief Minister of Tamil Nadu.
MGR may also refer to:
ManaGeR (MGR), graphical window system Mere Gook Rule (MGR), controversially claimed Vietnam War engagement policy Merry-go-round train, British freight-train design Metal Gear Rising: Revengeance, a video game developed by Platinum Games Postal code for Mġarr, Malta
Mgr. is an honorific or abbreviation for: Manager (disambiguation) Monseigneur (also Msgr.) Monsignor (also Msgr., Mons.)