"Variant of Balthasar"
The name Baltazar is commonly a male name from the "English" origin.
Baltazar is a variant of Balthasar, the name Western Christian tradition gives to one of the Magi. It is the usual Portuguese form and is also found in Spanish and Polish. The name descends through the Greek Balthasar of the Septuagint from the Babylonian king Belshazzar, Akkadian Bel-shar-usur, commonly translated as Bel protect the king.
Balthasar means "May the Lord protect the king.".
The pronunciation of Baltazar is BAL-tuh-zar.