There are the following brief statements about the “Mackenzie” clan:
The Mackenzie clan has a long history; they are of Celtic origin. The name means “Son of Kenneth” and is derived from the original Gaelic name Mac Coineach (Son of the Handsome).
There are two versions about the actual origin of Clan Mackenzie:
One goes back to a 12th century Highlander, known as Gilleoin of the Aird.
The other, much broader version goes back to a 12th century Highlander, Geraldine of Ireland.
Colin of Kintail descended from one of the two lines. His grandson, Coinneach Mac Coinneach (Kenneth, son of Kenneth), 3rd Baron of Kintail, changed the Gaelic name to the English "Mackenzie".
Today, several variations of pronouncing and spelling the name Mackenzie exist. The most important, recognized as branches by the clan, are:
MacKenzie, McKenzie, Macenzie, McEnzie, Makenzie, MaKenzie, M'Kenzie, Kenny, Kenney, MacKenny, MacKenney, McKenny, McKenney, Mackinzie, McKinzie, MacKinney, McKinney