St. Stephen's Day, known in Austria as Stefani Day, is a public holiday celebrated annually on the 26th of December. This holiday is celebrated in honor of St. Stephen, the first Christian martyr, who was stoned to death for his faith. Over time, the holiday has been absorbed into the larger Christmas holiday period, and is considered the second day of Christmas in many Western Christian traditions.

During St. Stephen's Day in Austria, many businesses, schools, and government offices remain closed as people get together with their families and loved ones for festivities. The day is often marked by religious ceremonies, church services, and processions. In addition, various customs and traditions are performed, such as horse blessing ceremonies in rural communities. These blessings involve carolers, often jockeys or horse riders, who carry the statue of St. Stephen and seek blessings for their horses.

Despite being a religious holiday, St. Stephen's Day is also intertwined with several secular traditions. Boxing Day sales, for instance, are prevalent in Austria and are a common feature after Christmas. These sales attract both locals and tourists resulting in bustling commercial activities. Music and folk dance gigs are also common during the St. Stephen's Day celebrations, which contribute to the holiday's festive atmosphere.