If you're asking this because of the Deathly Hallows Part 2 movie, he didn't change his name. Teddy didn't make the final cut for the movie, and completely left him out.
"Harry Potter in spanish is Harry Potter names don't change" This is still a sort of debate, as with some names, not necessarily in Harry Potter, they do change. But for the Spanish translation, there is no change. Be aware that names could change depending on the translators decision.
harry!
There is no scientific name for Harry Potter.
The third Harry Potter movie is called Harry Potter and the Prisoner of Azkaban.
Yes, Harry's full name is Harry James Potter.
Harry James Potter.
Harry James Potter
There is no character of that name in Harry Potter.
Harry James Potter
The name of the court in Harry Potter is the Wizengamot
There is no special name for a celebration in Harry Potter.
Harry Potter and the Deathly Hallows.