The Šiška District (Slovene: Četrtna skupnost Šiška) or simply Šiška () is the most populous of the city districts of Ljubljana, the capital of Slovenia. Several cultural monuments are located in Šiška, among them St. Bartholomew's Church, built in the 13th century and remodeled between 1933 and 1936 by the Slovene architect Jože Plečnik. Jože Plečnik is also designed the Church of Saint Francis in Šiška.