Kalanta Christougenon (Greek: Κάλαντα Χριστουγέννων) is a Greek traditional Christmas carol (kalanta) translated into English simply as "Christmas Carol." This carol is commonly abbreviated as Kalanta or Kalanda, some other common titles for this Christmas carol are Καλήν εσπέραν ("good evening") and Χριστός γεννάται ("Christ is born"). This carol is commonly sung around Christmas and accompanied by light percussion instruments such as the triangle and guitar.

Originating in the Byzantine Empire, this Greek traditional Christmas carol gained a large audience beyond Greece through various performances by Nana Mouskouri throughout Europe.