A Scottish and Irish surname meaning 'son of fire' or 'son of Aodh'. Also refers to various places named after people with this surname.
From Scottish Gaelic 'Mac Aodha' meaning 'son of Aodh', where Aodh was a Celtic name associated with fire or fiery temperament. The anglicized spelling varies as MacKay, Mackay, or McKay.
The Clan MacKay of Scotland was known as one of the most powerful Highland clans, controlling vast territories in the far north. Their clan motto 'Manu forti' means 'with a strong hand', reflecting their reputation as fierce warriors in the Scottish Highlands.
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