Quick answer
Avery is a boy/girl name.
Meaning and history
From an English surname that was itself derived from the Norman French form of the given names Alberich or Alfred. As a given name, it was used on the American sitcom Murphy Brown (1988-1998) for both the mother and son of the main character. By 1998 it was more popular as a name for girls in the United States, perhaps further inspired by a character from the movie Jerry Maguire (1996).
Notes and context
Usage: english