Old New Synagogue

The Old New Synagogue (Czech: Staronová synagoga; German: Altneu-Synagoge), also called the Altneuschul, is an OrthodoxJewish congregation and synagogue, located in Josefov, Prague, in the Czech Republic. The synagogue is Europe's oldest active synagogue. Completed in 1270, it is also the oldest surviving medieval synagogue of twin-nave design.

It is one of the earliest Gothic buildings in Prague. A still older Prague synagogue, known as the Old Synagogue, was demolished in 1867 and replaced by the Spanish Synagogue.