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', which translates to 'fair one' or 'handsome'. While traditionally a masculine surname, it became a popular feminine given name in the late 20th century.
Less common today
Mckenzye isn't in the latest US Top 1000. It last peaked at #7,697 in 2011.
US births per 5-year period, 1990βpresent (SSA data).