NNR

AcronymDefinition
NNRNational Nature Reserve (United Kingdom)
NNRNishi-Nippon Railroad (Japan)
NNRNearest Neighbor Rule (algorithm)
NNRNational Nuclear Regulator (South Africa)
NNRNever Not Riding (cycling club)
NNRNorth Norfolk Railway (UK)
NNRNeuronal Nicotinic Receptor
NNRNational Narcolepsy Registry
NNRNeb Neb Revolution (website)
NNRNo Need to Respond (Internet slang)
NNRNaach Naach Revolution (dance competition)
NNRNavy Nonreporting
NNRNeural Network Review