Jack Marshall (1912–1988) was prime minister of New Zealand.
Jack Marshall may also refer to:
Sports Jack Marshall (ice hockey) (1877–1965), Canadian ice hockey player Jack Marshall (pitcher) (1893–1961), American Negro leagues baseball pitcher Jack Marshall (second baseman) (1908–1990), American Negro league baseball player Jack Marshall (soccer) (1892–1964), American soccer player Jack Marshall (cricketer) (1916–2000), English cricketer Jack Marshall (footballer, born 1917) (1917–1998), English football manager Jack Marshall (footballer, born 1895) (1895–1968), English footballer Jack Marshall (rugby union) (1926–2013), represented Australia
Others Jack Marshall (Canadian politician) (1919–2004) Jack Marshall (composer) (1921–1973), American guitarist, conductor, and composer Jack Marshall (author) (born 1936), American poet and author Jack Marshall, fictional protagonist of The Hacker Files, a DC Comics mini-series
See also John Marshall (disambiguation)