The Diocese of Borongan (Lat: Dioecesis Boronganensis) is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in the Philippines. Created on October 22, 1960 by Pope John XXIII from territory of the Diocese of Calbayog, the diocese is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Palo.

Bishop Vicente Reyes was the first diocesan bishop. On June 19, 1965, the island of Samar was politically divided and the province of Eastern Samar was born. Thus the island of Samar has three dioceses: Calbayog for Western Samar, Catarman for Northern Samar and Borongan for Eastern Samar.

Eastern Samar has a population of 374,255, 97 percent are Catholics. It is subdivided into 1 city and 22 municipalities. It has a land area of 4,470.75 square kilometers. It is bounded on the north by Northern Samar, on the east by the Philippine Sea, on the west by Western Samar and on the south by Leyte Gulf.

The Diocese of Borongan is divided into three regions, each has two vicariates. The episcopal see is Borongan. The diocese has experienced no jurisdictional changes since being erected.

Crispin Barrete Varquez was appointed its bishop in 2007.

No.	Picture	Name	From	Until	Coat of Arms
1st		Vicente P. Reyes	19 January 1961 (Appointed)	8 August 1967 (Deceased, Emeritus Bishop of Cabanatuan)
2nd		Godofredo Pisig Pedernal	26 February 1968 (Appointed)	18 September 1976 (Resigned)
3rd		Sincero Barcenilla Lucero	8 March 1977 (Appointed)	10 December 1979 (emeritus Bishop of Calbayog)
4th		Nestor Celestial Cariño	12 August 1980 (Appointed)	31 January 1986 (Resigned)
5th		Leonardo Yuzon Medroso	18 December 1980 (Appointed)	31 January 2006 (Retired, Bishop Emeritus of Tagbilaran)
6th		Crispin Barrete Varquez	4 August 2007 (Appointed)	Present

In the 8th of December 1995, the Parish Church of the Immaculate Conception, Guiuan formally launched a beatification movement for Donato Guimbaolibot, coinciding with the town fiesta and the celebration of the 400th anniversary of the town's Christian evangelization to the Vatican Council.

• Catholic Church in the Philippines

11°36′26″N 125°25′58″E / 11.6071°N 125.4327°E / 11.6071; 125.4327