Nigeria is a diverse nation which includes people of several different religions. There are certainly some Christians in Nigeria, and they have approximately the same belief in Santa Claus that American Christians have - although Nigeria is a warm country, in southern Africa, and there are fewer chimneys for Santa Claus to descend.
Santa Claus
Santa Claus
In Thai, Santa Claus is ซานตาคลอส.
They call him Santa Claus, or Santa.
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
People in Ireland call him Santy, Santa and Santa Claus. Santa Claus comes from Saint Nicholas and can then be shortened to Santa Claus or just Santa or Santy. So people in Ireland use those names, like people in many countries do.