The Saschiz fortified church (Romanian: Biserica fortificată din Saschiz; German: Kirchenburg von Keisd) is a Lutheran fortified church in Saschiz (Keisd), Mureș County, in the Transylvania region of Romania. It was built by the ethnic German Transylvanian Saxon community at a time when the area belonged to the Kingdom of Hungary. Initially Roman Catholic, it became Lutheran following the Reformation. Together with the surrounding village, the church forms part of the villages with fortified churches in Transylvania UNESCO World Heritage Site.