Abbreviations beginning with r

RNRMRARoyal Navy and Royal Marines Rifle Association (UK)
Governmental

RNRNRegistered Nurse Response Network
Medical » Nursing

RNRNRegistered Nurse Response Network
Miscellaneous » Unclassified

RNRNRegistered Nurse Response Network (coordinates sending volunteer RNs to disaster areas)
Miscellaneous

RNRPRedundant Network Routing Protocol
Academic & Science

RNRPRete Nazionale Ricercatori Precari (Italian: National Precarious Researchers Network)
Miscellaneous

RNRPRiver Nene Regional Park (Northampton, East Midlands, England, UK)
Miscellaneous

RNRPRossiyskaya Narodno Respublikanskaya Partiya (Russian: Russian People's Republican Party)
Miscellaneous

RNRRRive Nord Rock Radio (French: North Shore Rock Radio; internet radio)
Miscellaneous

RNRSCRegional Niagara Road Safety Committee (Canada)
Academic & Science

RNRTRoyal Naval Reserve Trawler
Governmental » Navy

RNRTRoyal Naval Reserve Trawler
Miscellaneous » Unclassified

RNRURegional Neurological Rehabilitation Unit (UK)
Academic & Science

RNRURelative Neutral Red Uptake (biochemstry)
Academic & Science

RNRURoyal Navy Rugby Union (UK)
Miscellaneous

RNRWCRock N Roll Worship Circus (rock group)
Miscellaneous

RNRXRoad & Rail Services
Regional » Railroads

RNRZRandomized Non Return to Zero
Computing » IT

RNRZLRandomized Non Return To Zero-Level
Academic & Science