Board Thread:Naruto Discussions/@comment-30516921-20141119224710/@comment-1018594-20141120023923

It looks like *you* never read Naruto. It's been stated, multiple times, that Hiruzen gave Naruto his mother's name so people, specifically Minato's enemies, wouldn't know they were related.

Can you name one instance in Naruto of a woman getting married and changing her name? A single one?

It's a fictional universe. Customs and traditions aren't the same as they are in the real world.