WWF may refer to:
Non-profit organizations:
World Wide Fund for Nature, a nature conservation group (formerly, and currently in some markets, the World Wildlife Fund)
World Water Forum, an international forum for water issues
Working Women's Forum, a training, trade and credit union in India
Waterside Workers' Federation, a defunct Australian trade union
Computing:
WWF (file format), a campaign to produce PDF electronic documents that forbid printing
Windows Workflow Foundation, a .NET framework API for creating flowchart-like applications
Entertainment:
World Wrestling Federation, the pre-2002 name of the World Wrestling Entertainment company (WWE)
Words with Friends, a Scrabble-like computer game on Facebook, iOS and Android
Other uses:
Welded wire fabric, a reinforcing material typically used in poured concrete slabs
Wiscasset, Waterville and Farmington Railway, a former 2-foot-gauge railroad in Maine, United States
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