Fuhrer
He gave it to himself. He may have been inspired by Mussolini's title of Duce, which also means leader.
After Hindenburg died in 1934, Hitler became the Head of the State. He gave himself the title of Führer und Reichskanzler which means leader and chancellor of the Reich.
That was the title Hitler was given after he became leader of Germany.
Fuhrer Hitler which also means "leader Hitler".
Fuhrer
Adolf Hitler's official title was Reichskanzler und fuhrer, or Chancellor of the Reich and Leader.
Reichskanzler und Fuhrer (Chancellor and Leader).
It was the Title used by Adolf Hitler for that purpose. Germany still uses the title, but the translation as "Nation Leader" is misleading.
Führer.
Because he was the leader of Germany? Führer means 'leader' in German
chancellor
Der Fuhrer, in it's literal sense, means "the leader". However, during his reign, Adolf Hitler described himself as the Fuhrer, which was simply his title for dictator of Nazi Germany.