The Archdiocese of Zamboanga (Latin name: Archdiocesis Zamboangensis) is a Catholic archdiocese in the Philippines. Its present jurisdiction includes Zamboanga City, with suffragans in Basilan (Territorial Prelature of Isabela, Basilan), Sulu Archipelago (Apostolic Vicariate of Jolo/Diocese of Jolo) and Zamboanga Sibugay (Diocese of Ipil). It became Mindanao's first diocese in 1910, and was established as the second archdiocese of Mindanao in 1958.