J
- Jack L. Goldsmith, American legal scholar and author
- Jan Goldsmith, American Republican politician; San Diego City Attorney
- Jemima Goldsmith (born 1974), English socialite
- Jerry Goldsmith (1929–2004), American composer
- Jo-ann Goldsmith, band member of Canada's Broken Social Scene
- Joel Goldsmith (born 1957), American film and television composer and son of Jerry Goldsmith
- Joel S. Goldsmith (1892–1964), American religious leader and author
- Johanna Goldsmith (born 1979), American actress
- John Goldsmith (born 1951), American linguistics professor
- John G. Goldsmith (1909-1972), British member of the SOE during World War Two
- Jonathan Goldsmith, American actor
- Judy Goldsmith, American feminist academic and activist
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