Ofc Mohammed is the most common name but thats a name common within the muslim community. I have noticed the name Sarah in every country, regardless of race or religion. Or it might be an abrahamic religion thing but thats most of the world atleast.
I suspect other Abrahamic names might make the cut.
Since Mohammed in various variants accounts for almost 2% of all humans (4% of males), this seems plausible, regardless of how many Mikes there are.