RMR

RMR may refer to:

• RMR (revolver), a .357 double-action revolver
• RMR (singer), an American singer and rapper
• RMR layout (of an automobile), see rear mid-engine, rear-wheel-drive layout
• Recife Metropolitan Region in Northeastern Brazil
• Recurring monthly revenue, a measure of customer attrition
• Registered Merit Reporter, a certification offered by the National Court Reporters Association
• Reliability must run, a contract in an electrical market
• Resting metabolic rate, see basal metabolic rate
• Revelstoke Mountain Resort, a Canadian ski resort located in Revelstoke, British Columbia
• Rick Mercer Report, a Canadian comedy television series
• Robust mouse rejuvenation, rejuvenating an elderly mouse so that its remaining life expectancy is doubled
• Rock mass rating, a rock mass classification system (geotechnical engineering)
• RockMyRun, a running/workout mobile app
• Royal Marines Reserve, the volunteer reserve force used to augment the regular Royal Marines
• The Royal Montreal Regiment, a Canadian Forces infantry regiment based in Montreal
• Ruggedized miniature reflex (optics), a type of weapon-mounted red dot sight for guns