What does Key mean?
Key has 1 related variation via Keyes: Keys.
Key is an uncommon given name for males but a very popular last name for both adults and children (#999 out of 150436, Top 1%). (2000 U.S. Census)
Displayed below is the birth name popularity of Key for boys. Key has not made it into the list so far. (Top 1000 Baby Names Records, 2014)