Marty is a surname. Notable people with the surname include:
- Alexandre Marty (1894-1918), French flying ace
- André Edouard Marty (1882–1974), French graphic artist
- André Marty (1886–1956), French communist and political commissar of the International Brigades during the Spanish Civil War (1936–1939)
- Anton Marty (1847–1914), Swiss-born Austrian philosopher
- Christian Marty (1945–2000), French aviator and athlete who died in a plane crash
- Dick Marty (1945–2023), Swiss politician
- François Marty (1904–1994), former Cardinal and Archbishop of Paris
- Frédéric Marty (1911–1940), French mathematician
- Henri Marty (Count Henri, Marie, Joseph, René Marty) (1887-1945), French educator, first Scoutmaster of the École des Roches in 1911
- John Marty (born 1956), member of the Minnesota Senate
- Mickey Marty (1922–2013), American basketball player
Fictional people
- Emilia Marty, a central character in the play The Makropulos Affair by Karel Čapek and the opera based upon it by Leoš Janáček