 Roman Catholic Territorial Prelature of Isabela

The Territorial Prelature of Isabela (de Basilan) () is a Roman Catholic territorial prelature located in the province of Basilan, and its component cities of Isabela City and Lamitan City, in the Ecclesiastical province of Zamboanga in the Philippines.The Prelature of Isabela in Basilan was established on October 12, 1963, and comprises the whole of Basilan Province, including Isabela City, its former capital, and Lamitan City, the new capital.