UOP is an initialism that may stand for the following: Ukroboronprom, a Ukrainian defence company University of Ottawa Press, publishing house University of Patras, in Patras, Greece University of Peloponnese, recently founded in Tripoli, Greece University of Pennsylvania, an Ivy League college in Philadelphia, Pennsylvania University of Peradeniya in Sri Lanka University of Peshawar, in Peshawar, Pakistan University of Petra, in Amman, Jordan University of Phoenix, for-profit educational institution specializing in adult education with online and ground classes University of Plymouth, in South Devon, England University of Portsmouth, in Hampshire University of Pretoria, South Africa University of Pune in India University of the Pacific (United States), in Stockton, California University of the Pacific (Peru), in Peru UOP LLC, (formerly Universal Oil Products), a company developing and delivering oil-related technology to the major manufacturing industries Uranus Orbiter and Probe, a proposal to study Uranus and its moons Urząd Ochrony Państwa, Polish Intelligence agency User operation prohibition, function in commercial DVDs that prohibits user operation at certain times during playback (such as while a copyright notice is displayed) uop can be a way to spell μop or Micro-operation in computing, using a u to represent the Greek letter mu