Synagogue de Thann, Jewish synagogue in Thann, France.

The Synagogue de Thann is a Neo-Byzantine Jewish prayer house built in 1862 on Rue de l'Étang. Its grey stone facade with pink sandstone trim has a triangular gable and a pointed-arch window with tracery. Inside, a ribbed barrel-vaulted ceiling rises above pale yellow walls with geometric tile patterns and gilded floral motifs; a red velvet curtain hangs before the wooden ark beneath a golden sunburst.

The building was constructed in 1862 to serve a growing Jewish community on a site previously occupied by a prayer house. During the 20th century, it sustained damage in World War I and was repurposed during Nazi occupation.

The synagogue was built in 1862 in the Moorish style, replacing a barn converted into a prayer house in 1818. Thann's rabbinate in the 19th century marked the community's standing. Services are now held there only rarely, and the building was listed with its mikveh, vestibule, rabbi's house and cemetery in 2016.

The synagogue stands at Rue de l'Étang No. 5 in central Thann, its rough grey stone and pink sandstone facade facing the street. It is rarely used for worship, so visits depend on the community; the exterior, with its gabled central section and round-arched entry above a short flight of steps, can be seen from the street at any time.

The 2016 heritage listing covers not only the synagogue but also the mikveh, the vestiaire, the rabbi's house and the cemetery. The building stands at No. 5 Rue de l'Étang, on plots that the Jewish community already owned in 1825, before the 1862 synagogue replaced an earlier prayer house.