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NRR may refer to:

  • Net run rate in cricket
  • Noise reduction ratings in hearing protectors
  • Net reproduction rate in human fertility
  • The Office of Nuclear Reactor Regulation in the United States
  • The National Recording Registry in the United States
  • Newport Reading Room, a gentlemen's club in Newport, Rhode Island
  • Non-repudiation of receipt, legal acknowledgement of origination/authorship of a document (as per internet RFC4130)
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