Vex or VEX may refer to:
Technology VEX prefix, a microprocessor opcode prefix and coding scheme for the x64 and x86 instruction set architecture Vex, a scripting language in the software Houdini Venus Express, a European Space Agency space mission to the planet Venus Vex, a suborbital test Tronador rocket in development by Argentina VEX Robotics, a robotics program for elementary through university students Vulnerability Exploitability eXchange, an industry standard for describing software vulnerabilities and their exploitability.
Fiction Voltayre's Encyclopedia Xenobiologica, a fictional guide to the 1994 Babylon 5 universe Vex, a character in the 2010 Canadian television series Lost Girl Vex, a character in the 2011 video game Darkspore Vex, a character in the 2011 video game The Elder Scrolls V: Skyrim The Vex, a race of semi-organic machines and one of the four alien enemy factions found in the 2014 video game Destiny Vex'ahlia "Vex" de Rolo, a half-elven ranger / rogue character in the 2015 American web series Critical Role where professional voice actors play the role-playing game Dungeons & Dragons Vex, a mob from Minecraft summoned by Evokers. Vex, The Gloomist, a playable champion character in the MOBA video game League of Legends Vex (Ninjago), a character in Ninjago
Other uses Vex (album), by Steel Pulse Vex, Switzerland, a municipality Ulorin Vex, English model Vex (brachiopod), a brachiopod genus; See List of brachiopod genera Virgin Express, a European airline, now merged into Brussels Airlines
See also VEX Robotics Competition, a robotics competition FIRST Vex Challenge, another robotics competition Z.Vex Effects, a US effects pedal company founded by Zachary Vex Z.Vex Fuzz Factory, a brand of fuzz box used for musical effects