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
• Maritime Union of Australia, a trade union (formerly the Waterside Workers' Federation)

Professional wrestling in Australia makes up a small part of Australian culture. Unlike the North American or Japanese products which have large, globally renowned organisations such as World Wrestling Entertainment, New Japan Pro Wrestling or Total Nonstop Action Wrestling with several hundred smaller promotions, Australia only has approximately 30 smaller independent circuit promotions which exist in all but one of the states and territories, that being the Northern Territory. Tours from the North American product are regularly sold out in capital cities such as Melbourne, Sydney, Perth and Brisbane.

WWF is a modification of the open standard PDF format for document exchange endorsed by the World Wide Fund for Nature (also abbreviated WWF) Germany. The WWF format is promoted as being more environmentally friendly than other comparable document exchange formats (e.g. PDF or DOC) since documents in this format are designed to be more difficult to print. The motivation behind the use of the format is to prevent unnecessary printing of documents. The website claims that the file format will be able to be read by most programs that can open ordinary PDF files. At present, the software for creating WWF files is available for Mac OS X 10.4 and for Windows XP and later. An Open Source equivalent is available for Linux and for Windows XP and later.