MSR

MSR may refer to:

Science and technology

• Machine state register, a register used in PowerPC architectures
• M–sigma relation, in astrophysics
• Magnetic Stripe Reader, a device used to read magnetic stripe cards such as credit cards
• Mars Sample Return Mission, a planned spaceflight mission
• Medium source rare-earth, a variant of hydrargyrum medium-arc iodide lamp
• Microsoft Reserved Partition, a space-management partition on a computer storage device
• Mining Software Repositories
• Mirror self-recognition, in animals through the mirror test
• Model-specific register, a feature in Intel x86 and x86-64 processor architectures
• Molten salt reactor, an advanced nuclear reactor design

Entertainment

• MSR Studios, a New York recording studio
• The Most Serene Republic, a Canadian indie rock band
• Metropolis Street Racer, a Dreamcast racing game
• Mid-season replacement, a television series that premieres in the second half of a traditional season
• The portmanteau of Agents Mulder and Scully on The X-Files.

Organizations

• Microsoft Research, the research division of Microsoft
• Mountain Safety Research, a company specializing in outdoor equipment
• Mouvement social révolutionnaire, a French fascist party
• Republican Social Movement, Movimiento Social Republicano a Third Position political party in Spain

Transportation

• Michigan Shore Railroad
• Muar State Railway, a railway operating in the Johor Sultanate, British Malaya
• EgyptAir, by ICAO airline code
• Muş Airport, by IATA airport code
• Mumbai Suburban Railway, railways service based in Mumbai

Other uses

• Main Supply Route, a military operations supply route
• Marine Scientific Research, a term describing activities under UNCLOS
• Market Stability Reserve, European Union Market Stability Reserve CO2 Emissions Trading System
• Milan–San Remo, an annual bicycle race
• Modern Sporting Rifle, a class of semi-automatic firearms
• Modular Sniper Rifle, a sniper rifle produced by Remington Arms
• Mortgage servicing rights, the rights to collect mortgage payments from a borrower for the benefit of the lender
• Most Serene Republic (disambiguation), a title in the name of various countries
• Montserrat, by ISO 3166-1 code