A Christmas ham or Yule ham is a ham often served for Christmas dinner or during Yule in Northern Europe and the Anglosphere. The style of preparation varies widely by place and time.

Despite the common claim that the tradition of eating ham is related to the Germanic pagan ritual of sacrificing a wild boar known as a sonargöltr to the Norse god Freyr during harvest festivals, this is highly dubious. In fact, in the United States, ham only became popular as a Christmas food in the 20th century.

The Romans were known to have eaten various foods during the Saturnalia, of which one was a roast piglet. Pope Sixtus III insisted in 435 that Christians should eat pork on Christmas to make a difference to the Jews, for which pork is forbidden.