| Official Name: | Na Mon |
| Native Name: | นามน |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Kalasin |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Na Mon |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 35,234 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 46230 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 4602 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 16.5753°N 103.7867°W |
Na Mon (Thai: นามน, in Thai pronounced as /nāː mōn/) is a district (amphoe) in the eastern part of Kalasin province, northeastern Thailand.
Neighboring districts are (from the northeast clockwise): Huai Phueng, Kuchinarai, Don Chan, Mueang Kalasin, and Somdet of Kalasin Province.
The minor district (king amphoe) Na Mon was created on 20 September 1973, when the three tambons Na Mon, Yot Kaeng, and Song Plueai were split off from Mueang Kalasin district.[1] It was upgraded to a full district on 1 January 1988.[2]
The district is divided into five sub-districts (tambons), which are further subdivided into 66 villages (mubans). Na Mon is a township (thesaban tambon) which covers parts of the tambon Na Mon. There are a further five tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Na Mon | นามน | 15 | 9,254 | ||
| 2. | Yot Kaeng | ยอดแกง | 18 | 8,248 | ||
| 3. | Song Plueai | สงเปลือย | 16 | 7,712 | ||
| 4. | Lak Liam | หลักเหลี่ยม | 9 | 5,774 | ||
| 5. | Nong Bua | หนองบัว | 8 | 4,246 |