The Sabilal Muhtadin Banjarmasin Mosque or better known as the Sabilal Muhtadin Grand Mosque is a historic mosque located in Banjarmasin City, South Kalimantan Province, Indonesia. This mosque was built in 1981 as a tribute to the great cleric Sheikh Muhammad Arsyad al-Banjari and stands on the former land of the Tatas Island army dormitory. In the era of Dutch colonialism, this place was known as Fort Tatas or Fort Tatas.