Quick answer
Mackenzie is a boy/girl name.
Meaning and history
From a Scottish surname, an Anglicized form of Gaelic MacCoinnich, itself derived from the given name Coinneach. As a feminine given name it was popularized by the American actress Mackenzie Phillips (1959-), especially after she began appearing on the television comedy One Day at a Time in 1975. In the United Kingdom it is more common as a masculine name.
Notes and context
Usage: english