Parr may refer to:

  • Parr (surname), people with the surname Parr
  • Parr, St Helens, a suburb of St Helens, England
  • Parr, Indiana, a small town in the United States
  • Parr (fish), a juvenile fish
  • Parr (artist), an Inuit artist
  • Carolinas-Virginia Tube Reactor, a demonstration heavy water nuclear reactor commonly called the Parr reactor after the plant's location of Parr, South Carolina