The surname Mackenzie is of Scottish origin and derived from Gaelic.
The name is an Anglicised form of the Gaelic Mac Coinnich, which is a patronymic form of the personal name Coinneach meaning "comely" or "handsome".
[1][2] Today personal name Coinneach is generally Anglicised as Kenneth however Kenneth was originally used as an Anglicisation of different Gaelic personal name – Cionaodh.
[2] It was originally written MacKenȝie and pronounced [məˈkɛŋjiː][3] in Scots, with the "z" representing the old Middle Scots letter, "ȝ" yogh.
[4] There are Lowland Scots words and Scottish names that have been affected in a similar way (example: the surname Menzies).