Others
- J. Arthur Thomson (1861–1933), Scottish naturalist
- John Edgar Thomson (1808–1874), American civil engineer, railroad executive and industrialist
- John Thomson (painter) (1778–1840), Scottish minister and landscape artist
- John Thomson (comedian) (born 1969), English comedian and actor
- John Thomson (fraudster), warehouse keeper of the Charitable Corporation
- John Thomson (photographer) (1837–1921), Scottish photographer
- John Thomson (cartographer) (1777–1840), Scottish cartographer
- John Stuart Thomson (1869–1950), American author
- John Bell Thomson (1835–1896), New Zealand police officer and detective
- John Millar Thomson (1849–1933), British chemist
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