| Translit Lang1: | Korean |
| Translit Lang1 Type1: | Hangul |
| Translit Lang1 Info1: | Korean: 산본동 |
| Translit Lang1 Type2: | Hanja |
| Translit Lang1 Info2: | Korean: {{linktext|山|本|洞 |
| Translit Lang1 Info3: | Sanbon-dong |
| Translit Lang1 Info4: | Sanbon-dong |
| Settlement Type: | Dong |
| Subdivision Type: | Country |
| Subdivision Name: | South Korea |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gyeonggi |
| Subdivision Type2: | Satellite city |
| Subdivision Name2: | Gunpo |
| Established Title: | Formed |
| Established Date: | 1914 |
| Area Total Km2: | 2.05 |
| Population Total: | 50,000 |
| Pushpin Map: | South Korea |
Sanbon-dong is a dong, or neighborhood, in Gunpo, a satellite city of Seoul in Gyeonggi Province, South Korea. Its total area is .[1] Due to its population of more than 50,000, for administrative purposes the area is divided into two dong, Sanbon 1-dong and Sanbon 2-dong. Its name can be translated as "the mountain's root," and refers to its position at the base of Surisan's eastern flank. On the other side of Surisan lies Anyang City.
The administrative entity of Sanbon was formed in 1914, as part of a general nationwide consolidation of local government under the Japanese occupation. At that time it was Sanbon-ri, a rural precinct of Siheung County. When it became part of the new Gunpo City in 1989, its status was changed from ri to dong. The name is believed to derive from Sanjeo, "low on the mountain," which was first used to describe the region in 1789.[2]
Seoul Subway Line 4 stops at Sanbon Station. Other landmarks include various Joseon Dynasty relics: a large kiln site, a shrine of the royal Jeonju Yi clan, and the tomb of 17th-century scholar Hoam Yi Gi-jo.
There is an active garbage incineration plant (Korean: 군포환경관리소) in Sanbon-dong.