Son of Kenneth; fair one
A modern creative spelling of the Scottish surname Mackenzie. It derives from the Gaelic 'Mac Coinnich', meaning 'son of Coinneach', where Coinneach translates to 'handsome' or 'fair'.
Less common today
Mykenzie isn't in the latest US Top 1000. It last peaked at #1,912 in 1999.
US births per 5-year period, 1990βpresent (SSA data).