St. Mary's Church in Katowice is one of the oldest churches in Katowice, Poland, dating back to 19th century. This neo-Gothic church is located in the Śródmieście district. The architectural design was entrusted to Alexis Langer, a renowned architect from Breslau (Wrocław). Although the original plans envisioned a much grander scale, the final neo-Gothic building spans 43 meters in length and 31 meters in width. Its most distinctive feature is the 71-meter octagonal tower, a signature trademark of Langer's craftsmanship.