Schloss Mageregg is a Renaissance château in the Annabichl district of Klagenfurt, Austria, built in 1590 by Mager von Fuchsstatt and featuring a distinctive architecture with a closed square design and corner towers. The castle is bordered by the Glan river, moats, and a high wall, with 19th-century renovations updating its appearance. The ground floor and terrace operate as a restaurant, while upper rooms host events and private rentals. Since 2000, the side building has housed the headquarters of the Carinthian Hunters' Association. The castle's romantic setting includes a partially wildlife-enclosed park with fallow deer, creating a unique atmosphere for dining and celebrations.