McIntosh, MacIntosh, or Mackintosh (Gaelic: Mac an Tòisich) is a Scottish surname, originating from the Clan Mackintosh. Notable people with the surname include:
Alastair McIntosh (born 1955), Scottish writer, academic and activist
Andrew McIntosh (professor) (born 1952), Professor of Thermodynamics at the University of Leeds and director of Truth in Science
Andrew McIntosh, Baron McIntosh of Haringey (1933–2010), British Labour politician
Cameron Mackintosh (born 1946), British theatrical producer
Charles Henry Mackintosh (1820–1896), Irish preacher and Christian writer
Charles Macintosh (1766–1843), Scottish inventor
Charles Rennie Mackintosh (1868–1928), Scottish architect and designer
D. N. McIntosh (1822–1896), leader of Creek Confederate regiment in the U. S. Civil War
David McIntosh (disambiguation)
Donald McIntosh (mathematician) (1868–1957), British mathematician
Donald McIntosh (1838–1876), Canadian-born officer in Custer's 7th Cavalry who was killed at Little Big Horn
Colonel E. E. B. Mackintosh (1880–1957), Director of the Science Museum, London
Erick McIntosh (born 1987), American football player
Ewart Alan Mackintosh (1893–1917), lieutenant in the British army during the First World War and a war poet
Gavin MacIntosh (born 1999), American actor and model
Hamish McIntosh (born 1984), Australian rules footballer
Harold Mackintosh, 1st Viscount Mackintosh of Halifax (1891–1964), son of confectioner John Mackintosh
James M. McIntosh (1828–1862), Confederate Army general in the American Civil War
John Mackintosh (disambiguation)
John McIntosh (disambiguation)
Lachlan McIntosh (1725–1806), American Revolutionary War general and political leader
Lucy Mackintosh (born 1956), co-owner of Lucy Mackintosh Contemporary Art Gallery, Lausanne, Switzerland
Maggie McIntosh (born 1947), American politician from Maryland
Murray McIntosh (born 1967), Canadian ice hockey defenceman
Pat McIntosh, Scottish mystery writer
Rayon McIntosh (born 1980), Jamaican-American McDonald's cashier known for violently attacking two customers, Rachel Edwards and Denise Darbeau, inside a Greenwich Village, New York City McDonald's
Robert J. McIntosh (born 1922), U.S. Representative from Michigan
Robert Mackintosh ('Red Rob', c.1745–1807), Edinburgh music composer
Robert Reynolds Macintosh (1897–1989), first Nuffield Professor of Anaesthetics, Oxford
Sarah MacIntosh (born 1969), British diplomat
Stephanie McIntosh (born 1985), Australian singer
William M'Intosh (also spelled McIntosh) (1838–1931), Scottish physician and marine zoologist
William McIntosh (1775–1825), Chief of the Lower Creek Indians
William Priestly MacIntosh (1857–1930), Australian sculptor
W. S. McIntosh (1921–1974), civil rights leader in Dayton, Ohio
Winston Hubert McIntosh (1944–1987), better known as Peter Tosh, Jamaican reggae musician
