Wow is an expression of surprise. Wow, Wow!, WoW, or WOW may also refer to: In gaming: · World of Warcraft, a 2004 massively multiplayer online role-playing game by Blizzard Entertainment · Worms Open Warfare, a 2006 turn-based artillery Nintendo DS and Sony PSP game · Worlds of Wonder, an early cross-genre role-playing game · Wizard of Wor, a 1980 arcade game produced by Midway In science, technology and the media: · Wow! signal, a strong radio signal of unknown origin detected by a SETI project in 1977 · Wow , a pitch variation while playing records with off-center holes · Wow and flutter measurement, the analysis of these frequency and pitch variations · Windows on Windows