In the United States, we mostly call him Santa Claus or sometimes, St. Nick. Most often, Americans shorten it to just "Santa".
They call him Santa Claus, or Santa.
In America, Santa is also called Santa Claus. He is occasionally also called St. Nick or Kris Kringle.
Santa Claus
Santa Claus
In Thai, Santa Claus is ซานตาคลอส.
We canadians call him Santa Claus, also. Don't worry about it.
He is still called Santa Claus there, in Alaska.
Santa Claus, or Father Christmas.
They call him Santa Claus. Exactly the same name as you call him.
People in Pakistan call Santa Claus Baba Christmas
People in England often call him Father Christmas, but some of them call him Santa Claus as well.
Santa Claus