Gresik Regency (older spelling Grissee) (Javanese:Nggersik) is a regency within East Java Province of Indonesia. It includes the offshore Bawean Island, some 125 km to the north of Java and Madura. The regency's administrative centre is the town of Gresik, about 25 km to the northwest of Surabaya; Gresik is also the capital of the sub-region of Gerbangkartasusilo, the metropolitan region of the city of Surabaya.