The Second Christmas Day, also referred to as Boxing Day, is celebrated in the Czech Republic each year on the 26th of December. This holiday, also recognised as St. Stephen's Day, extends the joy and merriment of Christmas for one more day. It is a public holiday which means most businesses, schools, and government offices are closed, allowing citizens to spend additional time with their family and friends, continuing the festive celebrations.

In the Czech Republic, as in many other European countries, the primary significance of the Second Christmas Day is rooted both in religious and cultural traditions. As part of the Christmas holiday season, it is often filled with visiting extended family members and friends who were not seen on Christmas Day. Some people might also take advantage of the day off to participate in outdoor activities, such as skiing, if weather conditions allow.

Furthermore, the Second Christmas Day in the Czech Republic has a connection to St. Stephen, who was the first Christian martyr. Predominantly, this day is for extending the peace and joy of the Christmas holiday, with the giving spirit lingering. The Czech Republic, rich in its own unique Christmas customs and traditions, adds its own unique flavour to this holiday, ensuring that the warmth and goodwill of the season continues into the Second Day of Christmas.