Charoen Sin (Thai: เจริญศิลป์, ) is a district (amphoe) of Sakon Nakhon province, northeast Thailand.

Neighboring districts are (from the north clockwise) Ban Muang, Wanon Niwat and Sawang Daen Din of Sakon Nakhon Province, and Ban Dung of Udon Thani province.

[2] The district is divided into five sub-districts (tambons), which are further subdivided into 52 villages (mubans).

The sub-district municipality (thesaban tambon) Charoen Sin covers parts of tambons Charoen Sin and Thung Kae.

This Sakon Nakhon Province location article is a stub.