PRX

PRX may refer to:


 * Pressure reactivity index, a medical tool for monitoring patients with acute brain injuries
 * PRX (telephony), a telephone switching platform developed by Philips
 * Public Radio Exchange, a web-based public-radio distribution company
 * PRX (gene), periactin (PRX is the current official symbol)
 * Peroxiredoxins, a family of enzymes (PRX is an older alias symbol)
 * Physical Review X, a scientific journal published by the American Physical Society
 * PRX, the IATA airport code for Cox Field Airport in Paris, Texas, United States
 * A file extension for PlayStation Portable firmware
 * Paper Rex, a Valorant E-sports team