| Official Name: | Khoi Sung |
| Native Name: | ข่อยสูง |
| Settlement Type: | Tambon |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type2: | Province |
| Subdivision Name2: | Uttaradit |
| Subdivision Type3: | District |
| Subdivision Name3: | Tron District |
| Population As Of: | 2005 |
| Population Total: | 4255 |
| Timezone: | ICT |
| Utc Offset: | +7 |
Khoi Sung (Thai: ข่อยสูง, in Thai pronounced as /kʰɔ̀j sǔːŋ/) is a village and tambon (sub-district) of Tron District, in Uttaradit Province, Thailand.[1] In 2005 it had a population of 4,255 people. The tambon contains eight villages.