Burgplatz, Historic square in Düsseldorf, Germany.

Burgplatz is an irregular open square on the Rhine in Düsseldorf's Old Town. Its landmark is the Schlossturm, a tall cylindrical tower with a pale lower shaft, red-brown brick upper section and a shallow roof. A narrow panel with faint text is set midway up the tower, which stands beside a large tree.

A castle was built by the Rhine around 1400 to collect tolls, and the square in front of it took its name. The castle became a residence of the dukes of Jülich-Kleve-Berg and was rebuilt as a palace; after fires in 1795 and 1872, its remains were demolished in 1892, leaving only the Schlossturm.

The Schlossturm, the only surviving part of Düsseldorf Castle, houses a shipping and navigation museum. The square in front of it hosts a yearly programme of events, including jazz festivals, French and Japanese days, book fairs, bicycle days and ski races. The northern Düssel flows into the Rhine here, and its bank is reached by a broad open staircase that locals and tourists use as a meeting point in summer.

The square is easy to reach and surrounded by walkways that connect to the Rhine promenade and the Old Town. Visitors can explore on foot and move freely between the river path and the narrow streets of the historic area.

The square has been listed as a Bodendenkmal since 10 May 1995, protecting the buried remains of the castle and its predecessors beneath the pavement. The Düssel stream, which gave Düsseldorf its name, still flows into the Rhine at the square's northern edge, reachable by a broad open staircase.