| Official Name: | Nong Ya Plong |
| Native Name: | หนองหญ้าปล้อง |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Phetchaburi |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Nong Ya Plong |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 14390 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 76160 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 7603 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 13.1631°N 99.6972°W |
Nong Ya Plong (Thai: หนองหญ้าปล้อง, in Thai pronounced as /nɔ̌ːŋ jâː plɔ̂ŋ/) is a district (amphoe) in the northwestern part of Phetchaburi province, western Thailand.
Nong Ya Plong was established as a minor district (king amphoe) on 16 July 1972, when three tambons, Nong Ya Plong, Yang Nam Klat Nuea, and Yang Nam Klat Tai were split off from Khao Yoi district.[1] It was upgraded to a full district on 21 May 1990.[2]
Neighboring districts are (from the north clockwise) Ban Kha and Pak Tho of Ratchaburi province, Khao Yoi, Ban Lat, and Kaeng Krachan of Phetchaburi Province. To the west is the Tanintharyi Division of Myanmar.
The district is divided into four sub-districts (tambons), which are further subdivided into 31 villages (mubans). There are no municipal areas (thesaban), and three tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Nong Ya Plong | หนองหญ้าปล้อง | 11 | 6,411 | ||
| 2. | Yang Nam Klat Nuea | ยางน้ำกลัดเหนือ | 5 | 1,867 | ||
| 3. | Yang Nam Klat Tai | ยางน้ำกลัดใต้ | 7 | 2,375 | ||
| 4. | Tha Takhro | ท่าตะคร้อ | 8 | 3,737 |