Greece celebrates Christmas on December 25th, just like many other countries. However, there are some unique traditions and customs that set it apart from other Christmas celebrations. For example, in Greece, the holiday is known as "Kala Christouyenna," which means "Happy Christmas" in Greek. Additionally, many families in Greece have a special meal on Christmas Eve called "Kokoretsi," which is a dish made from lamb's intestines and other offal. It's also common for families to attend a church service on Christmas Eve and exchange gifts on Christmas morning.