WW

WW may refer to:

Arts and entertainment

 * 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

Businesses and organizations

 * 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

Places

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

Other uses

 * "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