In different countries, Santa's helpers go by different names. In Iceland they are the Yule Lads who between December 12 and 24, a different Lad visit homes each day to leave presents and play tricks on children. In the Netherlands, the companion is called Zwarte Piet (Black Peter), in Germany they are the Knecht Ruprecht and in Luxembourg they are known as Hoesecker. In the eastern regions of France, Père Fouettard accompanies Santa Claus, distributing coal to the naughty children.
In Nordic countries an elf will usually wear only red instead of the green and red outfits they are known for in English speaking countries. ~ Wikipedia
For more information on the Christmas Elf click HERE