Others
- John Lucas (administrator), Sr Vice President for Academic Programs & Chief Academic Officer, World Learning
- John Lucas (philosopher) (born 1929), British philosopher
- John Meredyth Lucas (1919–2002), screenwriter and director
- John Lucas (comics), American comic book artist
- John Robert Lucas (born 1961), American Christian author
- John Seymour Lucas (1849–1923), Victorian English historical and portrait painter
- Sir John Lucas (royalist), brother of Charles Lucas
- John Lucas (priest) (1921–1992), Archdeacon of Totnes
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