WW may refer to:

• Adelaide Writers' Week, a literary festival held annually in Adelaide, South Australia
• Wiener Werkstätte, an association of architects, artists, designers and artisans in Vienna, Austria
• William Whopper, an evil property developer in the Australian 1980 children's TV programme Secret Valley
• Wonder Woman, a fictional superhero
• WW, the production code for the 1968–1969 Doctor Who serial The Krotons
• WW (album), a 2005 album by the Norwegian metal group Gehenna

• IATA airline code of Venezolana
• Then IATA airline code of Bmibaby (2002-2012)
• Then IATA airline code of WOW Air (2012-2019)
• Winchester and Western Railroad (reporting mark WW)
• WW International, an American dietetics and nutrition company, formerly called Weight Watchers

• County Wicklow, Ireland (vehicle plate code WW)
• Westerwaldkreis, Germany (vehicle plate code WW)

• "Warm white", a descriptor of light source color temperature, as defined in the JIS Z 9112 standard, and used by Exif tags
• Weight Watchers (diet), a comprehensive diet program by WW International
• William H. Webster (born 1924), director of the FBI and CIA, referred to in the Kryptos sculpture as "WW"
• Woodrow Wilson, President of the United States from 1913-1921
  • Woodrow Wilson Teaching Fellowship, aka WW Teaching Fellowship
• World war
• "Wrong word", in proofreading
• w/w, abbreviation for mass fraction in chemistry

• WWW (disambiguation)

This disambiguation page lists articles associated with the title WW.
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