WWF may refer to:

  • World Wide Fund for Nature, a nature conservation organization previously named World Wildlife Fund (and still using the former name in some markets)
  • World Wrestling Federation, the name used from 1979 to 2002 by the professional wrestling company now known as WWE
  • Welded wire fabric, a reinforcing material typically used in poured concrete slabs
  • Working Women's Forum, an organisation in India
  • World Water Forum, an international forum for water issues
  • Windows Workflow Foundation, Microsoft's workflow management framework
  • Wiscasset, Waterville and Farmington Railway, a former 2 foot gauge railroad in Maine, United States
  • WWF (file format), a campaign to produce PDF electronic documents that forbid printing
  • Words with Friends, a game for Apple and Android platforms
  • Waterside Workers' Federation, a former Australian trade union, now the Maritime Union of Australia