Rex
Rex or REX may refer to: Rex (title) (Latin: king, ruler, monarch), a royal title King of Rome (Latin: Rex Romae), chief magistrate of the Roman Kingdom == Animals == === Dogs === Rex (Ronald Reagan's dog) Rex (search and rescue dog), a dog that received a 1945 Dickin Medal for bravery === Other animals === -rex, a taxonomic suffix used to describe certain large animals Tyrannosaurus rex, a large predatory cretaceous dinosaur Rex (horse) or Rex the Wonder Horse, star of 15 Hollywood motion pictures Rex rabbit, a breed of rabbit Rex mutation, a type of mutation affecting the fur of the rex rabbit One of at least three types of rabbit fur collectively known as "rex fur" A category of domestic cat breeds, such as the Devon Rex == Computing and technology == REX prefix, used by the x86-64 instruction encoding Rexx (originally named Rex), a computer programming language REX, an audio file format; see REX2 .rex (disambiguation), file extension used by Rexx scripts and REX2 audio files REX 5000, a series of personal digital assistants REX 6000, a series of personal digital assistants Rex (software), a remote execution, configuration management and software deployment system Rex (video game), a 1988 game for the ZX Spectrum and Amstrad CPC REX OS, a real-time operating system developed by Qualcomm Samsung REX, a series of affordable feature phones REX, an abbreviation for "request to exit", a push-button or motion detector used for access control == Energy and fuels == Rockies Express Pipeline, a natural gas pipeline built across the United States Rex Energy, a defunct company engaged in natural gas exploration Rex International Holding Limited, an oil and gas company headquartered in Singapore == Fictional characters == === Film === Rex Lewis, a character from G.I. Joe: The Rise of Cobra Rex Manning, the former 80s pop idol in the 1995 film Empire Records Rex (Toy Story), a toy dinosaur character from Disney/Pixar's Toy Story series Rex, the sheepdog from the 1995 Academy Award-winning film Babe Rex, a Tyrannosaurus Rex, a character in animated film We're Back! A Dinosaur's Story Rex Kwon Do, a martial arts choreographer in the 2004 cult film Napoleon Dynamite Rex, Lori's boss in the film Ted Rex Motion Picture Company, was an early film production company in the United States from 1910 into 1917 Rex (film), alternative name for Megan Leavey, 2017 === Animated television series === Rex Banner, a one-time character in The Simpsons appearing in the episode "Homer vs.