The Old Synagogue (German: Alte Synagoge) was a Jewish congregation and synagogue, that was located at Heidereutergasse 4, in Marienviertel, in the present-day Mitte district of Berlin, Germany.

Designed and built by Michael Kemmeter, the synagogue was built as a rectangular hall building.

[2] Nevertheless, services continued to be held in the Old Synagogue into the 20th century; it was restored in 1928.

[3] The synagogue survived Kristallnacht but was destroyed during World War II.

The last service took place in the Old Synagogue on November 20, 1942.