Mac an Tòisich is a Scottish Gaelic surname, the original form from which the Anglicized McIntosh derives. The name translates as 'son of the chief', with 'tòiseach' being a Gaelic term for a leader or chieftain. This surname originates from the Highlands of Scotland, particularly associated with the Clan Mackintosh, one of the principal clans of the Chattan Confederation. The Mackintoshes were historically a powerful family, and the name Mac an Tòisich thus reflects a patronymic connection to their chief.
The Gaelic spelling Mac an Tòisich represents the authentic pronunciation in Scottish Gaelic, while English-language records often rendered it as MacIntosh or Mackintosh due to phonetic interpretation and spelling conventions. The related variant MacIntosh and Mackintosh are common adaptations, with the latter also becoming an eponym for the Mackintosh raincoat, named after Charles Macintosh (1766–1843), a Scottish chemist and inventor whose surname derived from this ancient root.
As a patronymic surname, Mac an Tòisich is most frequently found in Scotland, particularly in the Highland regions around Inverness-shire and Perthshire, where the Clan Mackintosh held lands. The name remains in use today among those tracing lineage to this clan, and modern bearers often use the varied Anglisized forms. The earliest records of the name in written documentation appear in medieval Gaelic manuscripts and later in English-language parish registers from the 16th century onward.
- Meaning: 'Son of the chief'
- Origin: Scottish Gaelic
- Type: Surname
- Usage Regions: Scotland (Highlands)
Variants
Sources: Forebears — mac-an-tòisich