| Official Name: | Na Thom |
| Native Name: | นาทม |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: |  Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Nakhon Phanom |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Don Toei |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 21930 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 48140 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 4811 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 17.7853°N 104.0906°W |
Na Thom (Thai: นาทม, in Thai pronounced as /nāː tʰōm/) is a district (amphoe) of Nakhon Phanom province, northeastern Thailand.
Neighboring districts are (from the east clockwise): Ban Phaeng and Si Songkhram of Nakhon Phanom Province; Akat Amnuai of Sakon Nakhon province; and Seka and Bueng Khong Long of Nong Khai province.
The minor district (king amphoe) Na Thom was established on 1 April 1992, when three tambons were split off from Ban Phaeng district.[1] It was upgraded to a full district on 11 October 1997.[2]
The district is divided into three sub-districts (tambons), which are further subdivided into 35 villages (mubans). There are no municipal (thesabans), and three tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Na Thom | นาทม | 15 | 8,310 | ||
| 2. | Nong Son | หนองซน | 12 | 8,331 | ||
| 3. | Don Toei | ดอนเตย | 8 | 5,289 |