| Official Name: | Si Nakhon |
| Native Name: | ศรีนคร |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sukhothai |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Si Nakhon |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 27374 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 64180 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 6408 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 17.3481°N 99.9908°W |
Si Nakhon (Thai: ศรีนคร, in Thai pronounced as /sǐː ná(ʔ).kʰɔ̄ːn/) is a district (amphoe) of Sukhothai province, in the lower northern region of Thailand.[1] [2] It may also be spelled Sri Nakhon.
Neighboring districts are (from the south clockwise): Sawankhalok and Si Satchanalai of Sukhothai Province, and Tron and Phichai of Uttaradit province.
The minor district (king amphoe) Si Nakhon was established on 20 January 1976, then consisting of the two tambons: Si Sakhon and Nakhon Doet of Sawankhalok district.[3] It was upgraded to a full district on 13 July 1981.[4]
The district is divided into five sub-districts (tambons), which are further subdivided into 49 villages (mubans). The township (thesaban tambon) Si Nakhon covers parts of tambon Si Nakhon. There are a further five tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Si Nakhon | ศรีนคร | 10 | 6,759 | ||
| 2. | Nakhon Doet | นครเดิฐ | 11 | 5,637 | ||
| 3. | Nam Khum | น้ำขุม | 10 | 5,674 | ||
| 4. | Khlong Maphlap | คลองมะพลับ | 10 | 6,317 | ||
| 5. | Nong Bua | หนองบัว | 8 | 2,987 |