• John L. Smith (born 1948), American football coach
• John Lawrence Smith (1818-83), American doctor and chemist. Past president of the American Association for the Advancement of Science
• John Lee Smith (1894–1963), Lieutenant governor of Texas
• John Lucian Smith (1914-1972), Marine Corps ace and Medal of Honor recipient
• John Smith (Conservative politician) (1923-2007), former Member of Parliament for Cities of London and Westminster
• John L. Smith (Diplomat), (1877-?) British diplomat, once worked in China (Chinese: 施彌德)

See also

• John Smith (disambiguation)