PRR

PRR may refer to:

Parietal reach region, of the human brain
Pattern recognition receptor, receptors of the innate immune system that identify pathogen-associated molecular patterns
Pennsylvania Railroad (reporting mark), an American railroad
Personal Role Radio, a radio carried by UK troops
Pichi Richi Railway, a heritage railway in South Australia
Populist radical right, a loose collection of political ideologies
Porsche Rennsport Reunion, an automotive event
Princes Risborough railway station (National Rail station code), England
Production Rule Representation, a proposed computing standard
Proportional reporting ratio, a statistic used in data mining for health surveillance systems
Pseudo-response regulator, a group of genes that are important in the circadian oscillator of plants
Pure Reason Revolution, a British rock group formed in 2003
Rio-grandense Republican Party (Portuguese: Partido Republicano Rio-Grandense), a defunct Brazilian political party

See also