The Metropolitanate of Hulwan was an East Syriac metropolitan province of the Church of the East between the eighth and twelfth centuries, with suffragan dioceses for Dinawar, Hamadan, Nihawand and al-Kuj (perhaps Karaj d'Abu Dulaf). The city of Hulwan (Syriac: ܚܘܠܘܐܢ) was one of the chief towns in the western Iranian province of Media. The metropolitanate of Hulwan was ranked among the 'exterior provinces', so called to distinguish them from the province of the patriarch and the five core Mesopotamian 'interior' provinces.