Semmering is a town in the district of Neunkirchen in the Austrian state of Lower Austria. It is famous for its skiing, and has hosted the Alpine skiing World Cup several times. When the famous Semmering Railway was completed in 1854, it brought many tourists from Vienna to here. Today, tourists are fewer, but more than 100,000 overnight stays are still recorded each year. In 2011, the town had a permanent population of 571.