İske Taş Mosque, Federal cultural heritage mosque in Yaña Bistä, Kazan, Russia

The İske Taş Mosque is a two-storey mosque with two prayer halls and a three-tiered minaret set on a thick cross wall between them, its façades rebuilt in strict classicism after 1830. The minaret's form recalls those of Bolghar and Kasimov, and a large old stone once stood before the east façade.

Built in 1802 with funds from merchant Ğabdulla Ütämişev, the mosque was reconstructed in 1830 to a design by Alexander Schmidt. Closed at the end of the 1930s by decision of the Central Executive Committee of the Tatar ASSR, it served as a school and then a warehouse. Returned to believers in 1994, it was restored between 2021 and 2024.

The name İske Taş means "Old Stone", after the large stone that marked a legendary grave of defenders of Kazan in 1552 and stood before the east facade. In the 19th century the imams came from the Amirkhan family, whose house next door was home to the writer Fatih Amirkhan. A foundation stone for a memorial stele to the heroes of the Tatar people was laid by the mosque on 13 Shawwal 1446 AH.

The mosque stands in the Novo-Tatarskaya Sloboda, not on Bauman Street; the nearest landmark is the house at Mekhovshchikov Street 7, a three-minute walk from the site of the earlier wooden mosque. The building was returned to believers in 1994 and restored between 2021 and 2024, so some areas may still be under finishing work. Visitors should dress modestly and remove shoes before entering the prayer halls.

The name İske Taş means "Old Stone", after the large stone that marked a communal grave of defenders of Kazan in 1552. The stone stood in front of the mosque's east facade for many years after the building was erected.