Kostel svaté Kateřiny, Gothic church in Chomutov, Czech Republic

The Church of Saint Catherine adjoins the east side of the main wing of Chomutov Castle, originally a commandery of the Teutonic Order. Its massive polygonal presbytery was completed in the 1280s, and the late 13th-century transverse nave and presbytery keep vault keystones and bases carved with plant motifs. The church nave and west tower were absorbed into the castle's residential wings during the 15th- and 16th-century rebuilds.

The church existed before 1252, when the German Knights acquired Chomutov; in 1264 they built a commandery adjoining its west facade and added a polygonal presbytery completed in the 1280s. Damaged by fire in 1408 and in the Hussite capture of 1421, it later became a castle chapel and, under the Lobkowicz family, a burial chapel with a crypt. After the Jesuit order was dissolved in 1773, it was closed and used as a granary, warehouse and coach house.

The church is dedicated to Saint Catherine and was once the chapel of the castle that replaced the German Knights' commandery. Since 2000 it has hosted exhibitions and concerts of the Regional Museum, and once a year a Catholic pilgrimage service is held here.

The building is accessible through the Regional Museum and hosts regular exhibitions and cultural events. Visitors should check the museum's website for current opening times and scheduled activities.

In 1281 Chotěbor of Račice stipulated in his will that he and his wife be buried in the order's church. Repairs began in 1991, and in November 2000 the church reopened after more than 200 years, now hosting exhibitions, concerts and one Catholic pilgrimage service a year.