Leitch ( LEETCH) is a surname. Notable people with the surname include:
- Archibald Leitch, Scottish architect
- Barry Leitch, Scottish video game music composer
- Bill Leitch, Canadian curler; see List of teams on the 2011–12 World Curling Tour
- Billy Leitch (1895–1963), Irish footballer
- Cecil Leitch, English golfer
- David Leitch (director), American director and stuntman
- David Leitch (politician) (1923–1988), Australian politician
- David Leitch (settler) (1753–1794), founder of Leitch's Station, Kentucky
- David R. Leitch (born 1948), American politician
- Donovan Leitch, known as Donovan, Scottish musician
- Donovan Leitch, Jr., actor and the son of the above
- George Leitch (died 1907), English actor-manager and dramatist in Australia
- Harry Leitch, Scottish squash player
- Ione Skye Leitch, known as Ione Skye, actress and daughter of Donovan Leitch
- Kellie Leitch (born 1970) Canadian politician
- Maurice Leitch, writer
- Michael Leitch (born 1988), Japanese rugby union player
- Mia Leitch (Born 2011) Australian Painter
- Peter Leitch (disambiguation), several people:
- Ronnie Leitch (1953-2018), Sri Lankan Burgher actor, vocalist, and comedian
- Scott Leitch, Scottish football player and manager
- Thomas Leitch, American philosopher, academic, and film scholar
- Will Leitch, American writer
- Will Leitch (Northern Irish journalist)
- William Leitch (disambiguation), several people
- William Leitch (footballer) (1863–1943), Tasmanian footballer, businessman and sports administrator
- William Leitch (scientist) (1814-1864), Scottish astronomer and rocket visionary
- William T. Leitch (1808–1885), mayor of Madison, Wisconsin, 1862–1865
- William Leighton Leitch (1804–1883), Scottish landscape watercolour painter and illustrator