Julius Sullan Tonel (born 31 August 1956) is a Filipino Catholic bishop appointed as the Metropolitan Archbishop of Zamboanga in April 2023.

[2] On 7 December 1979, Seminarian Julius Tonel was ordained to the diaconate by His Eminence Agnelo Cardinal Rossi, then-Prefect of the Sacred Congregation for the Evangelization of Peoples, at Santo Domingo Parish in Quezon City.

[3] In the initial years of his ministry in Davao City, Father Tonel would be designated as Parochial Vicar of St. Jude Thaddaeus Parish, and of the San Pedro Cathedral.

From 1982 to 1986, he would be assigned as Prefect of Discipline and, later, as Rector of the Saint Francis Xavier College Seminary; he would also be working with the vocations promotion ministry of the Archdiocese.

[5] On 30 June 2007, the Holy Father Pope Benedict XVI appointed Monsignor Julius Tonel as the third bishop for the Prelature of Ipil.