• W3, a postcode district in the W postcode area
• PZL W-3 Sokół, a Polish helicopter
• The Amazing 3
  The Amazing 3
  The Amazing 3, known in Japan as , is an Osamu Tezuka manga and a black and white anime series from the 1960s. It involves the adventures of three agents from outer space who are sent to Earth to determine whether the planet, a potential threat to the universe, should be destroyed...
  
  , a manga and anime series, known in Japan as Wonder 3
• Webster's Third New International Dictionary, the 1961 edition of Webster's Dictionary
• Flyhy Cargo Airlines, IATA code
  Airline codes-F
  |-||EYE|F.S. Air Service|SOCKEYE|United States||-||IFA|FAI Air Service|RED ANGLE|Germany||-||FLC|FINFO Flight Inspection Aircraft|FLIGHT CHECK|United States||-||FKI|FLM Aviation Mohrdieck|KIEL AIR|Germany||-||DCM|FLTPLAN|DOT COM...
  
   W3
• The U.S. Internal Revenue Service
  Internal Revenue Service
  The Internal Revenue Service is the revenue service of the United States federal government. The agency is a bureau of the Department of the Treasury, and is under the immediate direction of the Commissioner of Internal Revenue...
  
   form W-3, a transmittal form for W-2 information.
• W3, a pay grade of public-service scientists in German universities
• 4th step of the W0-W6 scale for the classification of meteorites by weathering

World Wide Web (www)

• World Wide Web
  World Wide Web
  The World Wide Web is a system of interlinked hypertext documents accessed via the Internet...
  
  , a system of interlinked hypertext documents accessed via the Internet
• World Wide Web Conference
  World Wide Web Conference
  The International World Wide Web Conference is a yearly international academic conference on the topic of the future direction of the World Wide Web...
  
   (WWW), a yearly international academic conference on the topic of the future direction of the World Wide Web
• WorldWideWeb
  WorldWideWeb
  WorldWideWeb, later renamed to Nexus to avoid confusion between the software and the World Wide Web, was the first web browser and editor. When it was written, WorldWideWeb was the only way to view the Web....
  
  , the first web browser and editor
• World Wide Web Consortium
  World Wide Web Consortium
  The World Wide Web Consortium is the main international standards organization for the World Wide Web .Founded and headed by Tim Berners-Lee, the consortium is made up of member organizations which maintain full-time staff for the purpose of working together in the development of standards for the...
  
  , also known as W3C and W3.org, the main international standards organization for the World Wide Web

Video games

• Warcraft III: Reign of Chaos
  Warcraft III: Reign of Chaos
  Warcraft III: Reign of Chaos is a real time strategy computer game released by Blizzard Entertainment on July 3, 2002 . It is the second sequel to Warcraft: Orcs & Humans, and it is the third game set in the Warcraft Universe...
  
  , the third game in the Warcraft series
• Worms & Reinforcements United, a game bundle composing the first Worms game and the Worms Reinforcements expansion pack
• Wolfenstein 3D
  Wolfenstein 3D
  Wolfenstein 3D is a video game that is generally regarded by critics and gaming journalists as having both popularized the first-person shooter genre on the PC and created the basic archetype upon which all subsequent games of the same genre would be built. It was created by id Software and...
  
  , the third game in the Wolfenstein series