Renu Nakhon (Thai: เรณูนคร, pronounced [rēː.nūː ná(ʔ).kʰɔ̄ːn]; Northeastern Thai: เรณูนคร, pronounced [le᷇ː.nu᷇ː nà(ʔ).kʰɔ᷇ːn]) is a district (amphoe) of Nakhon Phanom province, northeastern Thailand.

[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.

[3] Renu Nakhon is divided into eight sub-districts (tambons), which are further subdivided into 91 administrative villages (mubans).

The group produce Indigo Collection sportswear for the Leicester City Football Club.

The blue colour obtained from indigo dyeing, locally known as kram, matches the football team's color.