The game was deadlocked at 0-0 after regulation, but at the 113-minute mark in overtime, Mario Götze, a substitute, chested down an Andres Schurrle cross and volleyed in the winning goal.
Though there were no goals in regulation, there was plenty of action, and both sides rued some missed chances.
The title is considered Germany's fourth World Cup, though the first three of those were by West Germany. It was also the first time a European country won the World Cup in the Western Hemisphere after six failures.
The Germans were dominant throughout this Cup, and though this game won them the title, they may be remembered more for their 7-1 shellacking of host Brazil in the semifinal.(ST)