The head of the Commonwealth of Nations is the Queen of England.
The Commonwealth of Nations is an organization made up of 54 countries that were mostly former British colonies. The head of the Commonwealth is a symbolic role that represents the unity of the member nations. The Queen of England has held this position since she became the queen in 1952, and she is the longest-serving head of the Commonwealth.
As the head of the Commonwealth, the Queen does not have any political power or authority over the member nations. Instead, her role is to promote unity, cooperation, and friendship among the member countries. She also meets with leaders of the member nations and attends Commonwealth events and conferences.