| Official Name: | Wang Nam Yen |
| Native Name: | วังน้ำเย็น |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sa Kaeo |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Wang Nam Yen |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 62059 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 27210 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 2704 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 13.4997°N 102.1819°W |
Wang Nam Yen (Thai: วังน้ำเย็น, in Thai pronounced as /wāŋ ná(ː)m jēn/) is a district (amphoe) in the southern part of Sa Kaeo province, eastern Thailand.
In 1971 the government built a new road connecting Chanthaburi province with Sa Kaeo province. Then the people from Ban Tha Ta Si and Ban Nong Prue moved to establish a new village along the new road in the area. They named the new village Ban Wang Nam Yen after their important water resource. It was upgraded to Tambon Wang Nam Yen of Sa Kaeo district in 1975. 1 In December 1976 the minor district (king amphoe) Wang Nam Yen was created, consisting of the three tambons Wang Nam Yen, Wang Sombun, and Ta Lang Nai.[1] Wang Nam Yen was upgraded to a full district on 1 April 1983.[2]
Neighboring districts are (from the north clockwise) Khao Chakan, Watthana Nakhon, Khlong Hat, and Wang Sombun of Sa Kaeo province and Tha Takiap of Chachoengsao province.
The district is divided into four sub-districts (tambons), which are further subdivided into 84 villages (mubans). Wang Nam Yen is a township (thesaban tambon) which covers tambon Wang Nam Yen. There are a further three tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Wang Nam Yen | วังน้ำเย็น | 19 | 21,598 | ||
| 3. | Ta Lang Nai | ตาหลังใน | 21 | 12,882 | ||
| 5. | Khlong Hin Pun | คลองหินปูน | 16 | 9,492 | ||
| 6. | Thung Maha Charoen | ทุ่งมหาเจริญ | 28 | 18,087 |