Other
- Paul Williams (architect) (1894–1980), prominent architect in Los Angeles, California
- Paul Williams (bishop) (born 1968), Bishop of Kensington
- Paul Williams (director) (born 1943), American film and television director
- Paul Williams (health service manager) (born 1948), former Chief Executive, NHS Wales
- Paul Williams (politician) (1922–2008), British Member of Parliament
- Paul Williams (professor), professor at American University and director of the Public International Law & Policy Group
- Paul Williams (philosopher) (born 1950), professor of Indian and Tibetan Philosophy at the University of Bristol, UK
- Paul Williams (The Young and the Restless), fictional character on The Young and the Restless
- Paul L. Williams (US general) (1894–1968), United States general in World War II
- Paul X. Williams (1908–1994), U.S. federal judge
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