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Diocese of Tagum Dioecesis Tagamna Diócesis sa Tagum Diyosesis ng Tagum
Catholic
Tagum Cathedral
Coat of arms
Location
Country	Philippines
Territory	Davao del Norte (except Samal and Talaingod), and Davao de Oro
Ecclesiastical province	Davao
Metropolitan	Davao
Coordinates	7°26′27″N 125°48′00″E / 7.44095°N 125.79990°E / 7.44095; 125.79990
Statistics
Area	8,129 km2 (3,139 sq mi)
Population - Total - Catholics	(as of 2021) 1,892,604 1,384,000 [1] (73.1%)
Parishes	89
Information
Denomination	Catholic
Sui iuris church	Latin Church
Rite	Roman Rite
Established	January 13, 1962 (As Prelature) October 11, 1980 (As Diocese)
Cathedral	Cathedral of Christ the King
Titular patron	Christ the King
Secular priests	106
Current leadership
Pope	Francis
Bishop	Medil Sacay Aseo
Metropolitan Archbishop	Romulo Valles

The Diocese of Tagum (Latin: Dioecesis Tagamna) is a Latin Church diocese of the Catholic Church in the Philippines. ^[2] It is a suffragan of the Archdiocese of Davao. It was canonically erected as Prelature Nullius on January 13, 1962, by Pope John XXIII, with Joseph Regan M.M. as its local ordinary. It was elevated to the status of a diocese on October 11, 1980, by Pope John Paul II, who appointed Pedro Dean as its first Filipino bishop ordinary, and Ramon Villena as the auxiliary bishop.

The diocesan territory comprises the entire civil provinces of Davao del Norte (except the city of Samal, the southern portion of the Lasang River) and Davao de Oro.

At the moment there is only one religious institute of men present in the diocese. These are the missionary priests who operate a school in Tagum City. They are called Congregation of the Schools of Charity "Cavanis Fathers" (CSCH) which is housed at Letran de Davao High School, Seminary Drive, Tagum City.

• Handmaids of Christ the King (ACR)
• Daughters of Mary of the Assumption (FMA)
• Dominican Sisters of the Most Holy Rosary of the Philippines (OP)
• Dominican Sisters of Regina Rosary (OP-Regina)
• Dominican Sisters of the Trinity (OP)
• Order of the Most Holy Savior of Saint Bridget (OSsS)
• Religious of the Virgin Mary (RVM)
• Teresian Daughters of Mary (TDM)

Bishop			Period in Office	Coat of Arms
1.		Joseph William Regan, M.M.	1962–1980
2.		Pedro Rosales Dean	1980–1985
3.		Wilfredo Dasco Manlapaz	1986–2018
3.		Medil Sacay Aseo	2018 - Present

Bishop			Period in Office	Coat of Arms
1.		Ramon Barrera Villena	1982-1985

• Catholic Church in the Philippines