There have been two Baronetcies created for people with the surname Mackintosh, both in the Baronetage of the United Kingdom. One creation is extant as of 2010.

The Mackintosh Baronetcy, of Mackintosh in the County of Glamorgan, was created in the Baronetage of the United Kingdom on 30 December 1812 for Aeneas Mackintosh. He was an author as well as Chief of Clan Mackintosh

Clan MacKintosh

Clan Mackintosh is a Scottish clan from Inverness with strong Jacobite ties. The Mackintoshes were also chiefs of the Chattan Confederation.-Origins:...

 and Captain of Clan Chattan

Chattan Confederation

Clan Chattan or the Chattan Confederation is a confederation of 16 Scottish clans who joined for mutual defence or blood bonds. Its leader was the chief of Clan Mackintosh.-Origins:The origin of the name Chattan is disputed...

. The title became extinct on his death in 1820.

The Mackintosh Baronetcy, of Halifax in the County of York, was created in the Baronetage of the United Kingdom on 28 January 1935 for Harold Mackintosh

Harold Mackintosh, 1st Viscount Mackintosh of Halifax

Harold Vincent Mackintosh, 1st Viscount Mackintosh of Halifax was a British peer.-Early life:...

. He was later raised to the peerage as Viscount Mackintosh of Halifax

Viscount Mackintosh of Halifax

Viscount Mackintosh of Halifax, of Hethersett in the County of Norfolk, is a title in the Peerage of the United Kingdom. It was created in 1957 for the businessman and public servant Harold Mackintosh, 1st Baron Mackintosh of Halifax. He was the owner of the confectionery business of John...

. See this title for more information.