John R. Smith may refer to: John R. Smith (agriculture commissioner) (19th century), American politician from North Carolina John R. Smith (politician, born 1945), politician from Leesville, Louisiana John Raphael Smith (1751–1812), English painter John Robert Smith (21st century), American politician from Mississippi John Roxborough Smith (born 1939), Canadian politician in the Legislative Assembly of Ontario John Rubens Smith (1775–1849), American painter John Russell Smith (1810–1894), English bookseller and bibliographer