Bacong, officially the Municipality of Bacong, is a 4th class municipality in the province of Negros Oriental, Philippines. According to the 2020 census, it has a population of 41,207 people.

Bacong was the hometown of the Visayan hero of the Philippine Revolution, Pantaleon Villegas, better known as León Kilat.

Bacong is 8 kilometres (5.0 mi) from Dumaguete.

Bacong was founded 1801 as a coastal settlement. It is the Province's first town south of the Capital. The famed Church of San Agustin de Hippo and its monastery's construction was started in 1866 by Fray Leandro Arrúe Agudo. two years after he became the town's parish priest in 1864 as part of the Augustinian Recollects missionary work. The monastery now serves a retreat house. The stone churchhouse boasts the Province's tallest belfry and oldest main altar, adorned with gold-leafing and painted friezes. Its choir holds a pipe organ from Zaragoza, Spain, installed in 1898 shortly before the revolution against Spain broke out in Negros Oriental. The only other pipe organ of similar provenance is found in Bohol. With its reasonably well-preserved complex including churchyard and convent (ca 1850), the San Agustin of Hippo Church in Bacong is one of the 26 colonial churches all over the country selected for restoration by the National Commission for Culture and the Arts. Bacong's historical importance is well-monumented: it is the birthplace of Negros Oriental's hero and only Katipunero – General Pantaleon Villegas, aka Leon Kilat, whose birthday is celebrated every July 27. Barrio Isugan was the site of a battle between Filipino and American soldiers.

Beginning the Second World War, Japanese Imperial forces were entered and occupied in Bacong in 1942. Filipino soldiers and guerrillas were encounter by the Japanese Imperial forces start the conflicts from 1942 to 1945 during the occupation. When Allied forces liberated in Bacong was fought against the Japanese Occupation until the end in World War II in 1945. The general headquarters of the Philippine Commonwealth Army and Philippine Constabulary was active in 1945 to 1946 in Bacong during and aftermath in World War II.

Points of touristic interest are a string of beaches the length of the Bacong shoreline, sinamay hand looms, and the Negros Oriental Arts and Heritage (NOAH) which produces export quality stone craft furniture, jewel boxes and fashion accessories.

One of the town's bigger barangays, San Miguel, marks its local fiesta with a unique Sinulog de San Miguel, where the archangel and his heavenly army are depicted battling the forces of evil.

Lawmakers have been proposing to transfer the province's airport from the town of Sibulan to Bacong since 2014, and is still pending final approval as of 2022.

Bacong is politically subdivided into 22 barangays. Each barangay consists of puroks and some have sitios.

PSGC	Barangay	Population			±% p.a.
		2020		2010
074603001	Balayagmanok	3.4%	1,412	1,149	▴	2.08%
074603002	Banilad	13.4%	5,512	3,931	▴	3.44%
074603003	Buntis	9.7%	3,987	2,593	▴	4.40%
074603004	Buntod	4.9%	2,030	1,680	▴	1.91%
074603005	Calangag	1.8%	734	555	▴	2.83%
074603006	Combado	9.1%	3,759	2,072	▴	6.14%
074603007	Doldol	2.7%	1,097	913	▴	1.85%
074603008	Isugan	4.6%	1,910	1,341	▴	3.60%
074603009	Liptong	2.9%	1,185	781	▴	4.26%
074603010	Lutao	3.1%	1,298	1,087	▴	1.79%
074603011	Magsuhot	0.9%	384	340	▴	1.22%
074603012	Malabago	0.9%	368	331	▴	1.07%
074603013	Mampas	1.0%	431	175	▴	9.43%
074603014	North Poblacion	2.5%	1,011	995	▴	0.16%
074603015	Sacsac	10.2%	4,199	3,323	▴	2.37%
074603016	San Miguel	11.6%	4,762	4,101	▴	1.51%
074603017	South Poblacion	3.6%	1,492	1,576	▾	−0.55%
074603018	Sulodpan	4.2%	1,712	1,457	▴	1.63%
074603019	Timbanga	3.1%	1,291	1,035	▴	2.23%
074603020	Timbao	2.4%	1,003	1,079	▾	−0.73%
074603021	Tubod	2.4%	970	968	▴	0.02%
074603022	West Poblacion	1.6%	660	804	▾	−1.95%
	Total		41,207	32,286	▴	2.47%

Population census of Bacong

Year Pop. ±% p.a. 1903 9,678 —     1918 10,094 +0.28% 1939 10,644 +0.25% 1948 8,676 −2.25% 1960 10,592 +1.68% 1970 12,065 +1.31% 1975 13,368 +2.08% 1980 13,123 −0.37%	Year Pop. ±% p.a. 1990 16,384 +2.24% 1995 19,177 +2.99% 2000 23,219 +4.19% 2007 28,310 +2.77% 2010 32,286 +4.90% 2015 36,527 +2.38% 2020 41,207 +2.40%
Source: Philippine Statistics Authority

Poverty incidence of Bacong

5 10 15 20 25 30 2006 24.20 2009 20.77 2012 18.48 2015 25.71 2018 13.90 2021 15.95 Source: Philippine Statistics Authority

The public schools in the town of Bacong are administered by one school district under the Schools Division of Negros Oriental.

Elementary schools:

• Bacong Central School — Roxas Street, West Poblacion
• Buntod Elementary School — Buntod
• Calangag Elementary School — Calangag
• Fausto M. Sarono - Tubod Elementary School — Tubod
• Isugan Elementary School — Isugan
• Nazario Tale Memorial Elementary School — Banilad
• Sacsac Elementary School — Sacsac
• San Miguel Elementary School — San Miguel
• Timbanga Elementary School — Timbanga
• Timbao Elementary School — Timbao

High schools:

• Buntod High School — Buntod
• Ong Che Tee - Bacong High School — Nat'l Highway, Sacsac
• San Miguel National High School — San Miguel

Private schools:

• Bacong Holy Family High School — Nat'l Highway, West Poblacion
• Divine Grace International Christian School — Buntis
• DLHOH Institute Learning Center — Nat'l Highway, North Poblacion
• Shine Bacong Christian Learning Center, Inc. — Combado

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• Philippine Standard Geographic Code
• Philippine Census Information
• Local Governance Performance Management System