John C. Smith

John C. Smith may refer to:


 * John C. Smith (politician) (1832–1910), American politician
 * John Campbell Smith (1828–1914), Scottish writer
 * John Carraway Smith (ca. 1819–1868), American military officer
 * John Chaloner Smith (1827–1895), Irish engineer
 * John Christopher Smith (1712–1795), English composer
 * John Cotton Smith (1765–1845), American lawyer
 * John Cyril Smith (1922–2003), British legal scholar
 * John C. Smith (war correspondent), see New York Herald Tribune