Berlin Congress Center, Convention center in Berlin-Mitte, Germany.

The Berlin Congress Center is a modern building with three event levels and 26 rooms spread across roughly 5,000 square meters of space. A central domed hall serves as the heart of the facility and is complemented by additional rooms in various sizes for different types of events.

The complex of Haus des Lehrers and Kongresshalle was built 1961–1964 to plans by Hermann Henselmann's office with Bernhard Geyer and Jörg Streitparth, following the 1964 magistrat decision to rebuild Alexanderplatz. The foundation stone was laid on 12 December 1961 by mayor Friedrich Ebert; the ensemble opened on 9 September 1964. From 1970 until the Palast der Republik opened in 1976, the hall served as the meeting place of the Volkskammer.

The building is marketed as the Berlin Congress Center (bcc). Since 2003 it has hosted regular assemblies of the Chaos Computer Club as well as international meetings of doctors, scientists, artists and politicians, film premieres and award ceremonies. The dome hall's 1980s acoustic panels were preceded by tests on a 3D model at the Technical University of Berlin.

The complex sits on Alexanderplatz in Berlin-Mitte, with the Haus des Lehrers adjoining it to the northeast. The domed hall holds 1000 seats, while the whole building offers 23 event rooms with up to 2500 seats. The hall was closed for renovation from 2001 to 2003 and reopened in September 2003.

The dome hall's poor acoustics in the 1980s led the magistrate to mount small polyhedra on the ceiling to improve the sound. After the 2001–2003 renovation, speakers tested on a 3D model at the Technische Universität Berlin were installed, and the seating was replaced with chairs developed specially for the hall, with red cushions and folding seats.