Kaeng Krachan (Thai: แก่งกระจาน, pronounced [kɛ̀ŋ krā.t͡ɕāːn]) is a district (amphoe) of Phetchaburi province, western Thailand.

[2] Neighboring districts are (from the north clockwise) Nong Ya Plong, Ban Lat, and Tha Yang of Phetchaburi Province, and Hua Hin of Prachuap Khiri Khan province.

Most of the area of the district are the forested hills of Kaeng Krachan National Park.

There are no municipal areas (thesaban) within the district, and six tambon administrative organizations (TAO).

The district houses a distinctive library, designed the Bangkok architectural firm junsekino.