JW may refer to:
- People
- Jimmy Wales (born 1966), an American Internet entrepreneur
- John Wayne (born 1907), an American film actor
- John Williams (born 1932), an American composer
- Jack Wills, a clothing company
- Joey Wong, a Hong Kong actress
- other uses
- JW, Arrow Air, a cargo airline
- Jehovah's Witnesses, a religious group
- Jornalistas da Web, of Brazil