What is the origin of the last name Guerrero?

Answer 1

Ethnically, it depends, because it could come from any Spanish speaking country. However, more than likely it came from someones nickname. There is evidence explaining names like Guerrero, meaning warrior, as being taken by career soldiers for governmental reasons. For Example, when a king needed his taxes, he would ask for a name to mark down his paid/not paid; similar to our IRS today. Thus, a career soldier with a first name of "Sam" might have put down Sam Guerrero for this purpose. Then over the generations it stuck, creating many Guerreros from all over the world today.