Other
- Roy Williams (artist) (1907–1976), Disney story man / gag man and in the 1950s, The Mickey Mouse Club's "Big Mooseketeer"
- Roy Williams (playwright) (born 1968), contemporary British playwright
- Roy Williams (Scouting) (born 1944), Boy Scouts of America director
- Roy H. Williams (author), American author
- Roy Lee Williams (1915–1989), Teamsters labor union president
- Roy T. Williams (1883–1946), Church of the Nazarene superintendent
- Roy Williams Airport, an airport in Joshua Tree, California
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