MCR may refer to:
Music Modena City Ramblers, an Italian folk rock band My Chemical Romance, an American rock band "MCR Calling," a track from the album Manchester Calling
Organisations Maryport and Carlisle Railway, M&CR, a pre-grouping British railway company Midland Counties Railway, an early British railway company Muslim Community Radio, a radio station based in London, UK Middle common room, a postgraduate student organization Marine Commando Regiment, Canada Romandy Citizens' Movement (French: Mouvement Citoyens Romand), Swiss political party MCR Property Group, a real estate group founded by Aneel Mussarat MCR Hotels, an American hotel owner-operator
Science Methyl coenzyme M reductase, an enzyme that occurs in methanogenic archea Micro carbon residue, a petroleum industry test Mineralocorticoid receptor, a protein Multi-component reaction, chemical reaction Mutual Climatic Range, for determining past climate at an archaeological site
Technology Move to Coprocessor from Register, an ARM architecture CPU instruction Critical Mach number (Mcr), in aeronautics Maximum continuous rating, of a generating station Multi-component refrigerant Monitor Console Routine, of RSX-11 operating system
Other
Manchester City Region Marri Channa Reddy (1919–1996), Indian politician MCR HRD Institute, a training institute named for Marri Channa Reddy Master control room, a room for routing all incoming and outgoing signals Master of Clinical Research, an academic degree Medical care ratio, a healthcare metric Mahjong Competition Rules, standardized variety of Chinese mahjong
See also