Khok Charoen (Thai: โคกเจริญ, pronounced [kʰôːk t͡ɕā.rɤ̄ːn]) is a district (amphoe) of Lopburi province, central Thailand.

[2] Neighboring districts are (from the north clockwise) Phaisali of Nakhon Sawan province, Wichian Buri and Si Thep of Phetchabun province, Chai Badan, Sa Bot, and Nong Muang of Lopburi Province.

The district is divided into five sub-districts (tambons), which are further subdivided into 53 villages (mubans).

There are no municipal (thesaban) areas, and a further five tambon administrative organizations (TAO).

This Lopburi Province location article is a stub.