MRR

MRR is an acronym that may stand for:

Sport

• Manchester Road Race, a Thanksgiving Day race held annually since 1927

Science

• Mean reciprocal rank, a search quality measure in information retrieval
• Modulating retro-reflector, Free space optical communications technology
• Material removal rate, a term used in machining technology

Online business

• Master Resell Right
• Monthly Recurring Revenue, a performance measure for cloud computing businesses

Roads

In the names of roads, Middle Ring Road:

• Kuala Lumpur Middle Ring Road 1 (Malaysia)
• Kuala Lumpur Middle Ring Road 2 (Malaysia)
• Penang Middle Ring Road (Malaysia)
• Middle Ring Road (Tianjin) (China)
• Birmingham Middle ring road (A4540) in England

Media and pop culture

• Maximumrocknroll, a punk zine
• My Restaurant Rules, an Australian reality show

Literature and humanities

• Music: Rock Revelation, a comprehensive database of rock music discussion
• Marcel Reich-Ranicki, a German literary critic
• T.R.S. Broughton's Magistrates of the Roman Republic

Hobbies

• Model Railroader Magazine
• MyRealRacing, a racing simulator community.

Other

• Monitoring and Reporting Regulation (EU Law)
• Multi Rolle Radio (military)
• José María Velasco Ibarra Airport (IATA code)
• MENS ROOM (RELOADED), Nepali youth Organization