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EPR may refer to:

Organizations and companies[edit]

Science and technology[edit]

  • EPR, a third generation pressurized water nuclear reactor design
  • EPR paradox (Einstein–Podolsky–Rosen paradox), a topic in quantum physics and the philosophy of science concerning the measurement and description of microscopic systems
  • Earth potential rise, the occurrence of a large current flowing to earth through an earth grid impedance
  • East Pacific Rise, a mid-oceanic ridge, a divergent tectonic plate boundary located along the floor of the Pacific Ocean
  • Electron paramagnetic resonance spectroscopy, a technique for studying chemical species that have one or more unpaired electrons
  • Engine pressure ratio, a ratio of pressure used in gas turbine engine monitoring and control
  • Enhanced permeability and retention effect, the property by which certain sizes of molecules tend to accumulate in tumor tissue
  • Yevpatoria RT-70 radio telescope (Evpatoria planetary radar), a planetary radar at the Center for Deep Space Communications, Yevpatoria, Crimea, Ukraine
  • Endpoint Reference, an XML structure encapsulating information useful for addressing a message to a Web service
  • "Effectively propositional", another name for the Bernays–Schönfinkel decidable class of first-order formulas.