MRR may stand for:

Finance

• Monthly recurring revenue, a returning monthly income stream
• Market reference rate, e.g. Libor

Literature and humanities

• Marcel Reich-Ranicki (1920–2013), German literary critic
• T.R.S. Broughton's (1900–1993), Magistrates of the Roman Republic

Media and pop culture

• Maximumrocknroll, a punk zine
• My Restaurant Rules, an Australian reality show
• " Machine Robo Rescue", a Japanese mecha anime

Online business

• Master Resell Right

Roads

In the names of roads, Middle Ring Road:

• Kuala Lumpur Middle Ring Road 1 (Malaysia), an urban and municipal main ring road in Kuala Lumpur
• Kuala Lumpur Middle Ring Road 2 (Malaysia), a ring road connecting neighborhoods near Kuala Lumpur and Selangor
• Middle Ring Road (Tianjin) (China), a system of roads partly encircling the core of Tianjin
• Birmingham Middle ring road (A4540) in England
• Mackay Ring Road, a proposed bypass route of Mackay

Science

• Mean reciprocal rank, a search quality measure in information retrieval
• Modulating retro-reflector, Free space optical communications technology

Sport

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

Other

• José María Velasco Ibarra Airport (IATA code), an airport serving Macará, Ecuador
• Manila Railroad Company, former name of the Philippine National Railways
• Marine Raider Regiment, a special operations force of the United States Marine Corps
• Multi Rolle Radio (military), a modular radio set

This disambiguation page lists articles associated with the title MRR.
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