Who is the most famous person on earth?

Since there are many degrees of fame, you can't really say that there is one person who is more famous than anyone else in the entire world. There isn't a single individual whom everyone knows about. Some may be more well-known than others, but this would vary on a number of factors.

Answer:

There are no criteria for "most famous person" and so the answer could include anyone. Most people would interpret this question as most "famous and well liked" person excluding folks like Adolph Hitler, Joseph Stalin and Mao Tse Tung.

The religious would generally suggest their own founder except that schism and sectarian views may enter in (Mary may be preferred to Jesus by some Christians).

If persons from fiction are allowed Santa Claus and his atavars like Sinter Klaus and Father Christmas might rank highly.

Young folks might include popualr singers and sports figures although these are usually limited in wrld wide impact as a politicians,