Kris Kringle is derived from Christkind and is different than Santa Claus.
A Christmas gift-bringer in Germany. The name "Kris Kringle" is a mispronounciation of the German name; the actual German figure is called "Christkind", "Christkindchen" or "Christkindl" and is derived from the earlier Christkindl, which was introduced by Martin Luther*.
All of the German names mean "Christ child" and originally refer to the new-born Jesus.
The figure is distinct in origin and tradition from Santa Claus and Father Christmas. The Christkind ("Christ Child") is the traditional Christmas giftbringer in Southern Germany, Switzerland, Austria, Südtirol and Liechtenstein. Since the 1990s, the Christkind is facing increasing competition in Germany from the Weihnachtsmann in the American version of Santa Claus.
The Christkind is a sprite-like child, usually depicted with blond hair and angelic wings. Martin Luther intended it to be a reference to the incarnation of Jesus as an infant.
The form "Kris Kringle" is only used in the US. In Germany, it is completely unknown.