| Official Name: | Pla Pak |
| Native Name: | ปลาปาก |
| 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: | Pla Pak |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 50955 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 48160 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 4802 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 17.1806°N 104.5261°W |
Pla Pak (Thai: ปลาปาก, in Thai pronounced as /plāː pàːk/) is a district (amphoe) in the province Nakhon Phanom in northeast Thailand.
Neighboring districts are (from the north clockwise): Mueang Nakhon Phanom, Renu Nakhon, Na Kae, and Wang Yang of Nakhon Phanom Province; and Phon Na Kaeo and Kusuman of Sakon Nakhon province.
The area of the district was at first a tambon of Mueang Nakhon Phanom district. On 16 June 1965 it became a minor district (king amphoe) consisting of the three tambons: Pla Pak, Nong Hi, and Ku Ta Kai.[1] The first district officer was Winai Bunratnaplin. On 17 November 1971 it was upgraded to a full district.[2]
The district is divided into eight sub-districts (tambons), which are further subdivided into 85 villages (mubans). Pla Pak itself has township (thesaban tambon) status and covers part of tambon Pla Pak. There are a further eight tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Pla Pak | ปลาปาก | 16 | 10,159 | ||
| 2. | Nong Hi | หนองฮี | 12 | 7,414 | ||
| 3. | Kutakai | กุตาไก้ | 12 | 8,723 | ||
| 4. | Khok Sawang | โคกสว่าง | 8 | 4,743 | ||
| 5. | Khok Sung | โคกสูง | 10 | 5,316 | ||
| 6. | Maha Chai | มหาชัย | 8 | 5,654 | ||
| 7. | Na Makhuea | นามะเขือ | 11 | 5,895 | ||
| 8. | Nong Thao Yai | หนองเทาใหญ่ | 8 | 3,051 |