| Official Name: | Bueng Khong Long |
| Native Name: | บึงโขงหลง |
| Settlement Type: | Subdistrict |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type2: | Province |
| Subdivision Name2: | Bueng Kan |
| Subdivision Type3: | District |
| Subdivision Name3: | Bueng Khong Long |
| Population As Of: | 2010 |
| Population Total: | 10,245 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 17.9667°N 104.045°W |
| Postal Code Type: | Postal code |
| Blank Name: | TIS 1099 |
Bueng Khong Long is a sub-district (tambon) in Bueng Khong Long district in Bueng Kan province, northeastern Thailand. As of 2010, it had a population of 10,245 people, with jurisdiction over 17 villages.[1]
Both the district and sub-district are named after a reservoir south of Bueng Khong Long town which is a breeding ground for aquatic birds and spawning ground for fish.[2]