Makennzie is of American origin, a modern creation that gained popularity in the late 20th and early 21st centuries. It is often viewed as a variant spelling of Mackenzie, which is derived from the Gaelic personal name Coinnich, meaning 'fair-haired'. Makennzie is unique in its spelling, with the double 'n' adding an additional touch of individuality. The name has been most popular in English-speaking countries like the United States and Australia.
Makennzie had its first year with five births recorded in 2012.