Bo Thong (Thai: บ่อทอง, pronounced [bɔ̀ː tʰɔ̄ːŋ]) is a district (amphoe) in Chonburi province, Thailand.

Bo Thong was originally a tambon of Phanat Nikhom district.

On 16 December 1978 the minor district (king amphoe) was created.

Khao Cha-ang (เขาชะอางค์) is an isolated limestone mountain standing on a plain in Bo Thong District.

The district is divided into six sub-districts (tambons), which are further subdivided into 47 villages (mubans).