What does Balthazar mean?
Balthazar \b(a)-ltha-zar, bal-thazar\ as a name for boys. Balthazar's name origin is Babylonian, and the name Balthazar means "Baal protect the king". Balthazar is a variation of Balthasar (Babylonian): along with Caspar and Melchior.
Balthazar is an uncommonly occurring given name for males but a very prominent last name for all people (#29964 out of 150436, Top 20%). (2000 U.S. Census)
Shown below is the birth name popularity of Balthazar for boys. Balthazar has not made it into the Top 1000 thus far. (2014 Birth Statistics)