The Diocese of Pagadian () is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in the Philippines.

Created on November 12, 1971, the diocese was initially a suffragan of the Archdiocese of Zamboanga. With the ceding of the municipality of Margosatubig of the Ipil Prelature to the Diocese of Pagadian in January 1995, the diocese now has 24 parishes under its jurisdiction. The Catholic Christian population covered by the diocese is now 711,244 that comprises 72% of the total population of the area of about 2,860 square kilometers. The diocese is currently a suffragan to the Archdiocese of Ozamis.

The pastoral structure of the Diocese of Pagadian is organized into three areas of responsibility: consultative, judicial and administrative. Among its educational centers are one seminary, one college, 16 high schools and six pre-schools. The diocese has experienced no jurisdictional changes.

Ordinaries Bishop Period in office Coat of arms Note1. Jesus Balaso Tuquib24 February 1973 appointed – 31 March 1984 Appointed coadjutor archbishop of Cagayan de Oro2. Antonio Realubin Tobias14 September 1984 appointed – 28 May 1993 Appointed bishop of San Fernando de La Union3. Zacharias Cenita Jimenez2 December 1994 appointed – 11 June 2003 Appointed auxiliary bishop of Butuan4. Emmanuel Treveno Cabajar, C.SS.R. 14 May 2004 appointed – 22 November 2018 Retired5. Ronald Lunas, STL, DD 22 November 2018 - 2 January 2024Died6. Ronald Anthony Timoner2 April 2025 - present

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