Yes, Iranians do celebrate Christmas, although it is not as widely celebrated as it is in the Western world. In Iran, Christmas is known as "Shab-e Yalda," which means "The Night of Birth." This holiday is celebrated on December 24th or 25th, depending on the calendar used. It is a time for family and friends to gather together to exchange gifts, eat festive meals, and enjoy the festivities. Shab-e Yalda is also a time to reflect on the birth of Jesus Christ and to celebrate the arrival of light after the longest night of the year.