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Leo Magdugo Dalmao
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Leo Magdugo Dalmao

Bishop of Isabela
Bishop
1969
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Ordained
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Consecrated Bishop
Isabela
Diocese
Philippines
Country
The Life

Leo Magdugo Dalmao was born on December 1, 1969, in Tagbilaran City, Bohol, to Wilfredo Dalmao and Rosario Magdugo, and was baptized at St. Joseph Cathedral, Tagbilaran City. He entered the Claretian congregation in 1986 and studied AB Philosophy at the Claret Formation Center, now St. Anthony Mary Claret College. He made his First Profession on May 3, 1992, in Bungiao, Zamboanga City, studied Bachelor in Sacred Theology and a master's at the Loyola School of Theology, Ateneo de Manila University, from 1992 to 1997, made his Perpetual Profession on July 16, 1996, in Quezon City, and was ordained priest on May 31, 1997, at the Immaculate Heart of Mary Parish in Quezon City, by Msgr. José María Querejeta Mendizábal, CMF, Bishop of Isabela Prelature.

After ordination he served in Basilan as project coordinator for the indigenous Samal-Badjau people. He was appointed Prefect of Students in 2000 and, three years later, Novice Master while serving as Consultor and Prefect of Formation of the Philippine Province. He was elected Provincial Superior of the province in 2010, served as co-chairperson of the Association of Major Religious Superiors in the Philippines, and was elected in 2015, at the XXV General Chapter in Rome, as General Consultor and General Prefect of Formation of the congregation.

On March 25, 2019, the Feast of the Annunciation, Pope Francis appointed him Bishop of the Territorial Prelature of Isabela, the first Filipino Claretian bishop. He was consecrated and installed on May 24, 2019, at Sta. Isabel Cathedral in Isabela City, with Zamboanga Archbishop Romulo T. de la Cruz as principal consecrator and Ozamiz Archbishop Martin Jumoad assisting and preaching the homily. He is the fourth bishop-prelate of Isabela, succeeding Jumoad, who had been transferred to Ozamiz in 2016. The prelature was erected on October 12, 1963, and comprises the 1,359 square kilometres of the entire civil Province of Basilan and the cities of Isabela and Lamitan, with more than 126,000 Catholics on the Claretian congregation's count; the Manila Bulletin's installation report gives about 400,000 population, about 30 percent of them Catholic. The Claretians are present in three locations on the island, running schools and parishes. Its first Local Ordinary was Querejeta, from October 24, 1963.

Major Works & Initiatives
Appeal after the Lamitan City chapel desecrations, February 19, 2021
After unidentified individuals desecrated at least two village chapels in Lamitan City, Basilan, on Ash Wednesday, February 17, 2021, beheading a life-size image of San Isidro and throwing out and trampling an image of the Virgin Mary, Dalmao appealed for unity and urged care that the incident not destroy the efforts of the people, Church leaders, civil society, and government toward unity and peace. A pastoral appeal, not a Traditionis custodes act. The words of parish priest Fr. Edwin Rivero, Governor Jim Salliman, and ACN national director Jonathan Luciano in the same piece are theirs, never Dalmao's.
Statement condemning the Isabela City twin explosions, June 1, 2022
After twin explosions in Isabela City on Monday, May 30, 2022, one in the garage of a bus company about 6:15 p.m. and another outside an eatery about 30 minutes earlier, Dalmao condemned the incident in a statement on Wednesday, June 1, 2022, and echoed a message of peace to all Basileños. The LiCAS piece's lede reads 'Monday, June 30,' which is impossible against its June 1, 2022 publication date, since June 30, 2022 was a Thursday and the Monday was May 30; the dossier dates the work to the explosions on May 30 and the statement on June 1. A pastoral statement, not a Traditionis custodes act.
In His Own Words
The Old Mass, See by See
Isabela2019-05-24 – presentNo act of his own
What he inheritedNo provision for the 1962 Missal inherited from Jumoad is established in the record.
Since the SSPX decree of 2 July 2026: No statement recorded as of 2026-10-28.
Reviewed 2026-10-28Confidence: medium
Domus Dei’s Verdict
The Bishop & the Mass of Ages
No governing act of his own found
References & Further Reading
1.
Fr. Leo Dalmao, CMF Appointed Bishop of the Territorial Prelature of Isabela — Claretian Missionaries · 2019Appointment March 25, 2019, Feast of the Annunciation, noon bulletin; prelature erected October 12, 1963, 1,359 sq. km, entire civil Province of Basilan and the cities of Isabela and Lamitan, more than 126,000 Catholics; first Local Ordinary Querejeta, October 24, 1963; Claretians present in three locations running schools and parishes; birth December 1, 1969, Tagbilaran City, parents Wilfredo Dalmao and Rosario Magdugo, baptized St. Joseph Cathedral, Tagbilaran; entered congregation 1986; AB Philosophy, Claret Formation Center, now St. Anthony Mary Claret College; First Profession May 3, 1992, Bungiao; Bachelor in Sacred Theology and master's, Loyola School of Theology, Ateneo de Manila, 1992-1997; Perpetual Profession July 16, 1996, Quezon City; priest May 31, 1997, Immaculate Heart of Mary Parish, Quezon City, by Querejeta Mendizábal, Bishop of Isabela Prelature; Samal-Badjau project coordinator, Basilan; Prefect of Students 2000; Novice Master 2003, Consultor and Prefect of Formation; Provincial Superior elected 2010; AMRSP co-chair; General Consultor and General Prefect of Formation elected 2015, XXV General Chapter, Rome.
2.
New Isabela bishop installed — Manila Bulletin via FreeLibrary · 2019Dossier-only from_source swap (roster untouched), per the batches 3, 8, 9, 10, 14 and 15 precedent. Published June 2, 2019: installed as head of the Prelature of Isabela at Sta. Isabel Cathedral; Zamboanga Archbishop Romulo De la Cruz principal consecrator, assisted by Ozamiz Archbishop Martin Jumoad, also homilist; fourth bishop of the prelature; first Filipino Claretian to join the College of Bishops; succeeds Jumoad, transferred to Ozamiz in 2016; appointed March 25; Basilan Samal-Badjau project after 1997 ordination; Prefect of Students 2000; Novice Master 2003; provincial superior 2010; AMRSP co-chair. Same-day note: the caption confirms ordination and installation both on May 24, 2019, so the dossier matches the roster's possession basis despite the same-day consecration. Its 'election as council member to the Claretian general government in 2005' is an error; 2015 governs on claret.org. Prelature about 400,000 population, about 30 percent Catholic, not blended with claret.org's more than 126,000 Catholics.
3.
Leo Dalmao — Wikipedia · 2025Tier-3 scaffolding; appointment March 25, 2019, installation May 24, 2019, predecessor Jumoad, priesthood May 31, 1997 by Querejeta, consecration May 24, 2019 by de la Cruz agree with the opened sources. NOT shipped: motto Ut vitam habeant, which has no non-Wikipedia confirmation (the same motto belongs to David William Antonio of Nueva Segovia, a different man, and must not be confused with Dalmao); Valles as co-consecrator, since the opened Manila Bulletin piece shows Valles attending, not co-consecrating, and names de la Cruz and Jumoad; Claret Samal Foundation Inc. local superior 1999-2000, rector of Claret Theology House 2000-2003, and Ormoc Novitiate to 2010, since claret.org governs the post sequence. Health paragraph omitted from the bio: Wikipedia reports a December 24, 2024 Midnight Mass medical emergency, a ruptured aorta, sea ambulance to Zamboanga City, surgery in Metro Manila, discharge and recovery at a Quezon City care facility, recuperating well by January 2025, citing CBCP News December 26, 2024, Rappler December 27, 2024, ABS-CBN December 27, 2024, PNA January 15, 2025, and CBCP News January 22, 2025, none of which was opened; the claim is flagged here, not asserted in the bio.
4.
Catholic bishop calls for unity after beheading of religious images in southern Philippines — LiCAS News Philippines · 2021Published February 19, 2021: desecrations Ash Wednesday, February 17, 2021, at least two village chapels, Lamitan City, Basilan; San Isidro image beheaded; Marian image thrown out and trampled. Shipped pair 10 + 35 = 45 words. Rivero's, Salliman's, and Luciano's words are theirs, never Dalmao's.
5.
Basilan bishop condemns bomb attacks, appeals for promotion of peace, development — LiCAS News · 2022Published June 1, 2022: twin explosions Isabela City, one in a bus-company garage about 6:15 p.m. on Monday, another outside an eatery 30 minutes earlier; statement on Wednesday. The lede's 'Monday, June 30' is impossible against the June 1, 2022 publication date, since June 30, 2022 was a Thursday and the Monday was May 30, 2022; Wikipedia also dates the blasts to May 2022. The dossier dates the explosions to May 30 and the statement to June 1. Shipped pair 26 + 10 = 36 words; the 14-word ellipsis fragment and the 22-word fragment are not shipped with them, avoiding the ellipsis-counting edge for an exact-50 trio. The piece's 'faulty writing' phrase for the military's account is not copied, and Wikipedia's single-word 'unfortunate' gloss is not shipped; LiCAS wording governs.
Portrait: City Government of Isabela de Basilan / Wikimedia Commons
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