PRR may refer to:
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Parietal reach region, of the human brain
*
Pattern recognition receptor, receptors of the innate immune system that identify pathogen-associated molecular patterns
*
Pennsylvania Railroad
The Pennsylvania Railroad (reporting mark PRR), legal name The Pennsylvania Railroad Company also known as the "Pennsy", was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. It was named ...
(reporting mark), an American railroad
*
Personal Role Radio, a radio carried by UK troops
*
Populist radical right, a loose collection of political ideologies
*
Porsche Rennsport Reunion, an automotive event
*
Princes Risborough railway station (National Rail station code), England
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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
See also
*
PRRS (disambiguation) PRRS can refer to:
* Porcine reproductive and respiratory syndrome, a disease of pigs
* Radical Socialist Republican Party, a former Spanish political party
See also
* PRR (disambiguation)
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