| Flag Size: | 120x80px | ||
| Seal Size: | 100x80px | ||
| Image Map1: |
| ||
| Pushpin Map: | Philippines | ||
| Pushpin Label Position: | left | ||
| Pushpin Map Caption: | Location within the | ||
| Subdivision Type: | Country | ||
| Subdivision Name: | Philippines | ||
| Subdivision Type1: | Region | ||
| Subdivision Type2: | Province | ||
| Named For: | San Sebastián, Spain | ||
| Subdivision Type3: | District | ||
| Established Title: | Founded | ||
| Parts Type: | Barangays | ||
| Parts Style: | para | ||
| P1: | (see Barangays) | ||
| Leader Name: | Endi Gaviola | ||
| Leader Title1: | Vice Mayor | ||
| Leader Name1: | Laleine N. Babon | ||
| Leader Name2: | Reynolds Michael Tan | ||
| Leader Title3: | Councilors | ||
| Leader Name4: | voters (electorate_point_in_time}}|) | ||
| Elevation Max M: | 187 | ||
| Elevation Min M: | 0 | ||
| Population Density Km2: | auto | ||
| Population Blank1 Title: | Households | ||
| Timezone: | PST | ||
| Utc Offset: | +8 | ||
| Postal Code Type: | ZIP code | ||
| Demographics Type1: | Economy | ||
| Demographics1 Title2: | Poverty incidence | ||
| Demographics1 Info2: | % | ||
| Demographics1 Title3: | Revenue | ||
| Demographics1 Title4: | Revenue rank | ||
| Demographics1 Title5: | Assets | ||
| Demographics1 Title6: | Assets rank | ||
| Demographics1 Title7: | IRA | ||
| Demographics1 Title8: | IRA rank | ||
| Demographics1 Title9: | Expenditure | ||
| Demographics1 Title10: | Liabilities | ||
| Demographics Type2: | Service provider | ||
| Demographics2 Title1: | Electricity | ||
| Demographics2 Title2: | Water | ||
| Demographics2 Title3: | Telecommunications | ||
| Demographics2 Title4: | Cable TV | ||
| Blank1 Name Sec1: | Native languages | ||
| Blank2 Name Sec1: | Crime index | ||
| Blank1 Name Sec2: | Major religions | ||
| Blank2 Name Sec2: | Feast date | ||
| Blank3 Name Sec2: | Catholic diocese | ||
| Blank4 Name Sec2: | Patron saint | ||
San Sebastian, officially the Municipality of San Sebastian (Waray: Bungto han San Sebastian; Tagalog: Bayan ng San Sebastian), is a 6th class municipality in the province of Samar, Philippines. According to the 2020 census, it has a population of 8,704 people.
San Sebastian was absorbed into the town of Wright (Paranas) during the American occupation. In 1950, the neighborhoods of San Sebastian, Jitaasan, Dolores, Camanjagay, Bontod, Campidasa, Campiyak, Maslog, Balogo, Maropangpang, Binongtoan, and Bolwan were combined and re-established as a single town.[1]
The town of San Sebastian was known before as "Balugo," (the original and ancient name) considering that it was situated at the mouth of Balugo River. Balugo was a visita and it was annexed to Paranas. It was later renamed San Sebastian by Fray Domingo Ruiz, O.F.M. after his birthplace (a coastal city in Spain) who was then assigned in Balugo. Fr. Ruiz made initial efforts and recommendations that San Sebastian from its status as visita should be elevated and made into pueblo under the spiritual care of the cura paroco of Catbalogan.
Between 1894 and 1895, San Sebastian was given the status as pueblo and an independent parish separated from its mother town, Paranas.During the outbreak of the Philippine Revolution, San Sebastian was again affixed as a barrio of Paranas. Later with the enactment of Republic Act No. 543 by the Philippine Congress once again San Sebastian became an independent municipality.
San Sebastian is politically subdivided into 14 barangays. Each barangay consists of puroks and some have sitios.