| Official Name: | Renu Nakhon |
| Native Name: | เรณูนคร |
| 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: | Phon Thong |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 46353 |
| Population As Of: | 2014 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 48170 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 4806 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 17.0561°N 104.6797°W |
Renu Nakhon (Thai: เรณูนคร, in Thai pronounced as /rēː.nūː ná(ʔ).kʰɔ̄ːn/) is a district (amphoe) of Nakhon Phanom province, northeastern Thailand.
Neighboring districts are (from the north clockwise) Mueang Nakhon Phanom, That Phanom, Na Kae, and Pla Pak.
Renu Nakhon was a mueang which was converted into a district of Nakhon Phanom during the thesaphiban administrative reforms in 1907. In 1917 the district was renamed That Phanom.[1] The historical name of the area was reused when a new minor district (king amphoe) was created on 1 May 1970 with three tambons, Renu, Phon Thong, and Tha Lat, from That Phanom District.[2] The minor district was upgraded to a full district on 21 August 1975.[3]
Renu Nakhon is divided into eight sub-districts (tambons), which are further subdivided into 91 administrative villages (mubans).
| No. | Name | Thai | Villages | Pop.[4] | |
|---|---|---|---|---|---|
| 1. | Renu | Thai: เรณู | 14 | 7,980 | |
| 2. | Phon Thong | Thai: โพนทอง | 10 | 5,912 | |
| 3. | Tha Lat | Thai: ท่าลาด | 8 | 3,072 | |
| 4. | Na Ngam | Thai: นางาม | 14 | 8,917 | |
| 5. | Khok Hin Hae | Thai: โคกหินแฮ่ | 15 | 7,123 | |
| 7. | Nong Yang Chin | Thai: หนองย่างชิ้น | 8 | 4,320 | |
| 8. | Renu Tai | Thai: เรณูใต้ | 13 | 5,103 | |
| 9. | Na Kham | Thai: นาขาม | 9 | 3,926 |
There is one sub-district municipality (thesaban tambon) in the district:
There are eight sub-district administrative organizations (SAO) in the district:
In Ban Na Kham, a village in the district, 22 artisans spin cotton fiber into yarn and hand-dye it with natural indigo harvested locally. The group produce Indigo Collection sportswear for the Leicester City Football Club. The team is owned by the Thai company, King Power. The blue colour obtained from indigo dyeing, locally known as kram, matches the football team's color. The Indigo Collection, sold at King Power Stadium's Fan Store in Leicester, UK, debuted in May 2018 to strong interest from Leicester fans.[5]
Renu Nakhon is the setting of a Thai country song, (luk thung), titled (Thai: หนาวลมที่เรณู;) 'Cold Wind in Renu'). It has been popular since 1970, with new recordings by many performers.[6]