Mar Sarhad Yawsip Jammo

Sarhad Yawsip Hermiz Jammo (14 March 1941 – 4 February 2025) was an Iraqi-born American prelate of the Chaldean Catholic Church who presided over the Chaldean Catholic Eparchy of Saint Peter the Apostle of San Diego in the United States. He had been the bishop of this diocese since its inception on 25 July 2002. His bishopric currently sits at St. Peter's Chaldean Catholic Cathedral in El Cajon, California.

Mar Sarhad Jammo was born in Baghdad and ordained a priest on 19 December 1964. Following 38 years as a priest, he was elevated to the episcopate by the then Patriarch of Babylon of the Chaldeans, Mar Raphael I Bidawid. Upon his installment, his first post was to serve as bishop of the newly created eparchy, St. Peter the Apostle, which spans across nineteen states of the western United States. He retired on 7 May 2016.

Early life and education Born to an Assyrian family from Baghdad, he attended the Chaldean Patriarchal Seminary in Mosul for formation and left to Rome at the age of 17. He attended the Pontifical Urbaniana University, where he earned a master's degree in both philosophy and theology. He then pursued doctoral studies at the Pontifical Oriental Institute, where he earned a Doctor of Philosophy in Eastern Ecclesiastical Studies. His dissertation was titled, "The Structure of the Chaldean Mass". Bishop Jammo conducted instructional work at several prestigious universities. He taught at the Pontifical Oriental Institute in Rome, the University of Notre Dame, and the Catholic University of America in Washington, D.C.

Pastoral work After finishing his studies in Rome, Jammo was appointed pastor of St. John the Baptist Parish in Baghdad, where he would serve from 1969 to 1974. At which time, he became the rector at the Chaldean Patriarchial Seminary in Mosul. In 1977, he was made associate pastor of Mother of God parish in Southfield, Michigan, where he would serve with Mar George Garmo. In 1983, he was appointed pastor of St. Joseph's Church in Troy, Michigan, in which capacity he would serve until his elevation to the episcopacy. ), and "L'Office du soir chaldéen au temps de Gabriel Qatraya" in L'Orient Syrien 12 (1967) 187–210 on the writings of Gabriel of Qatar.

On Assyrian identity At a 1996 lecture on "Chaldeans in the Third Millennium", Jammo stated, "So often I had to clarify it because I think it's not understood, never understood, how much I write, and educate people. When I say "Chaldean,"—our forefathers when they gave us the name "Chaldean," did not mean, did not mean, did not mean that they are from people of Babylon. No! No! No! Don't be dumps, all of us, including me, to think that my forefathers didn't understand that living in Tel Keppe and Alqosh, they didn't know that they were Assyrians? Our forefathers understood. Our forefathers understood. When they said "Chaldeans," how someone living Tel Keppe didn't know that Nineveh was in front of his eyes, that he is not from Babylon. It's not meant in that way. Our forefathers searched for a comprehensive title, not only for one time or one period, but for the entirety of the people—all of it."

Death Jammo died in San Diego, California, on 4 February 2025, at the age of 83.