Clark Smith
Clark Smith may refer to:
- Clark Allen Smith (1846–1921), Justice of the Kansas Supreme Court
 - Clark Ashton Smith (1893–1961), American poet, sculptor, painter and author
 - Clark Smith (swimmer) (born 1995), American swimmer
 - Clark S. Smith (1912–2014), member of the Pennsylvania House of Representatives
 - Clark Robert Smith, innovator in the wine industry
 - Clark Smith, former hockey player with the Calgary Hitmen