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- John Nelson Warfield (1928(?)) is an American electrical engineering and systems scientist, and member of the Academic Committee of the International Encyclopedia of Systems and Cybernetics.
- Kevin Warwick (1954) is a British Cybernetician with interests in artificial intelligence, robotics, control systems and biomedical engineering, especially implant technology.
- Duncan J. Watts is an American professor of sociology
- Paul Watzlawick (1921–2007),
- Geoffrey West (1940) is a Britisch physicist.
- Douglas R. White (1942) is an American complexity researcher, social anthropologist and sociologist.
- Brian Wilson is a British systems scientist, known for his development of Soft systems methodology.
- Stephen Wolfram (1959) is English theorist known for his work in theoretical particle physics, cellular automata, complexity theory, and computer algebra.
- A. Wayne Wymore (1927) is an American mathematician and systems engineer. Founder and first Chairman of Systems and Industrial Engineering (SIE) Department at the University of Arizona.
- Warren Weaver (1894–1978) was an American mathematician and communication scientist.
- Norbert Wiener (1894–1964) was an American mathematician and one of the founders of cybernetics.
Read more about this topic: List Of Systems Scientists