Bang Phae (Thai: บางแพ, pronounced [bāːŋ pʰɛ̄ː]) is a district (amphoe) in the eastern part of Ratchaburi province, western Thailand.

Originally named Lam Phraya (ลำพระยา), it was renamed Hua Pho in 1917.

The district is divided into seven sub-districts (tambons), which are further subdivided into 65 villages (mubans).

The number of crimes is very small, and it is said that even if you forget appliance or leave the car overnight, it will not be stolen.

Because it is a watershed source that receives water released from the Srinakarin Dam in Kanchanaburi province in the upper part.