Mackenzie, Mckenzie, MacKenzie and McKenzie are alternative spellings of a Scottish surname.It was originally written MacKenȝie and pronounced [məˈkɛŋjiː] in Scots, with the “z” representing the old Middle Scots letter, “ȝ” yogh.This is an anglicised form of the Scottish Gaelic MacCoinnich, which is a patronymic form of the personal name Coinneach, anglicized as Kenneth.