GW2

GW2 may refer to:
 * Gears of War 2, a science-fiction third-person shooter
 * Geometry Wars: Retro Evolved², a multidirectional shooter video game created by Bizarre Creations
 * Guild Wars 2, a massively multiplayer online role-playing game by ArenaNet
 * Iraq War of 2003, or Gulf War 2
 * Plants vs. Zombies: Garden Warfare 2, a 2016 video game by PopCap