Sibulan, officially the Municipality of Sibulan (Cebuano: Lungsod sa Sibulan; Tagalog: Bayan ng Sibulan), is a second class municipality in the province of Negros Oriental, Philippines. According to the 2020 census, it has a population of 64,343 people.

Sibulan is 5 kilometres (3.1 mi) from Dumaguete. It is the location of Dumaguete Airport, the main airport for Negros Oriental.

Sibulan is also the location of the Balinsasayao Twin Lakes Natural Park, composed of Lake Balinsasayao and Lake Danao. The site, managed by the provincial government, is located 1,047 metres (3,435 ft) above sea level on Mount Talinis.

Sibulan is politically subdivided into 15 barangays. Each barangay consists of puroks and some have sitios.

PSGC	Barangay	Population			±% p.a.
		2020		2010
074620001	Agan-an	3.8%	2,472	3,010	▾	−1.95%
074620002	Ajong	5.5%	3,545	3,113	▴	1.31%
074620003	Balugo	3.8%	2,473	2,115	▴	1.58%
074620004	Bolocboloc	14.8%	9,495	7,539	▴	2.33%
074620005	Calabnugan	2.9%	1,891	1,339	▴	3.51%
074620006	Cangmating	11.4%	7,360	3,463	▴	7.83%
074620007	Enrique Villanueva	1.3%	856	1,285	▾	−3.98%
074620008	Looc	8.0%	5,138	4,066	▴	2.37%
074620009	Magatas	10.3%	6,597	4,820	▴	3.19%
074620010	Maningcao	4.2%	2,676	1,950	▴	3.21%
074620011	Maslog	8.1%	5,194	5,300	▾	−0.20%
074620012	Poblacion	8.6%	5,517	5,145	▴	0.70%
074620013	San Antonio	4.8%	3,068	2,641	▴	1.51%
074620014	Tubigon	1.6%	1,033	999	▴	0.34%
074620015	Tubtubon	10.9%	7,028	4,734	▴	4.03%
	Total		64,343	51,519	▴	2.25%

Population census of Sibulan

Year Pop. ±% p.a. 1903 8,413 —     1918 9,833 +1.05% 1939 9,884 +0.02% 1948 8,096 −2.19% 1960 12,026 +3.35%	Year Pop. ±% p.a. 1970 16,861 +3.43% 1975 20,108 +3.60% 1980 23,123 +2.83% 1990 27,172 +1.63% 1995 31,206 +2.63%	Year Pop. ±% p.a. 2000 37,523 +4.03% 2007 47,162 +3.20% 2010 51,519 +3.27% 2015 59,455 +2.77% 2020 64,343 +1.57%
Source: Philippine Statistics Authority

Poverty incidence of Sibulan

5 10 15 20 25 30 2006 21.10 2009 17.41 2012 14.68 2015 21.62 2018 10.90 2021 13.43 Source: Philippine Statistics Authority

Dumaguete Airport, the major airport in the province, is actually in Agan-an. There is a growing number of guest houses and beach resorts from Cangmating southward to Dumaguete and the coral reefs of Ajong are attracting more dive boats.

The municipal seat is in Poblacion, approximately midway along the coast of the town. The main port facility is located in the same barangay, where there are trips every hour to Liloan, Santander on the southern tip of Cebu island. There is also a fishing and freight port in Looc.

Sibulan has two small Marine Protected Areas (MPAs), which are coral reef areas that prohibit fishing, swimming and diving. One is in Agan-an, just north of the airport, the other in Cangmating. These were established to improve the sustainability of the local fishery.

The inland barangays are primarily agricultural and residential with minimal business and public facilities. Most commercial development is along the national highway, which runs the length of the town from Dumaguete in the south to San Jose at the north. Most business and light industry is also located along the highway in Bolocboloc, Maslog, Agan-an and Poblacion including the newly opened 100-bed Negros Polymedic Hospital. This is largely urban sprawl from Dumaguete seeking the advantageous tax rates in Sibulan.

Sibulan also boasts a golf course resort, perched on the foothills in barangay San Antonio, just north of the town center.

Colleges:

• Metro Dumaguete College Campus 2 — Magatas
• Negros Maritime College Foundation Inc. — Magatas
• St. Joseph Seminary College — Agan-an

The public schools in the town of Sibulan are administered by two school districts under the Schools Division of Negros Oriental.

Elementary schools:

High schools:

• Ajong National High School — Ajong
• Bolocboloc High School — Bolocboloc
• Dr. Benjamin T. Locsin High School — Maslog
• Enrique Villanueva High School — Sitio Tubod, Enrique Villanueva
• Maningcao National High School — Maningcao
• San Antonio National High School — San Antonio
• Sibulan National High School — Osmeña Street, Poblacion
• Sibulan NHS - Balugo Extension — Balugo
• Sibulan Night High School — Diputado Street, Poblacion
• Sibulan Science High School — Campaclan, Poblacion
• Tubigon High School — Tubigon

• 
  Municipal hall
• 
  San Antonio de Padua Church
• 
  Sibulan Airport
• 
  Sibulan shoreline
• 
  Lake Balinsasayao

• The travel guide Wikivoyage includes Sibulan in its Dumaguete article.
• Philippine Standard Geographic Code
• Philippine Census Information
• Local Governance Performance Management System