St. Anne's Church (Polish: Kościół św. Anny) is a church in the historic center of Warsaw, Poland, adjacent to the Castle Square, at Krakowskie Przedmieście 68. It is one of Poland's most notable churches with a Neoclassical facade. The church ranks among Warsaw's oldest buildings. Over time, it has seen many reconstructions, resulting in its present-day appearance, unchanged since 1788. Currently it is the main church parish of the academic community in Warsaw.