Bang Bon (Thai: บางบอน, pronounced [bāːŋ bɔ̄ːn]) is one of the 50 districts (khet) of Bangkok, Thailand. Its neighbours, clockwise from north, are Bang Khae, Phasi Charoen, Chom Thong, and Bang Khun Thian districts of Bangkok, Mueang Samut Sakhon district and Krathum Baen district of Samut Sakhon province, and Nong Khaem district of Bangkok.

Formerly Bang Bon was a tambon of amphoe Bang Khun Thian in Thonburi Province, prior to the merger of Thonburi and Phra Nakhon into a single province, after which it was a sub-district of Bang Khun Thian District.

On 14 October 1997, Bang Bon was split from Bang Khun Thian and established as a new district. The district office opened on 6 March 1998, the last of Bangkok's 50 districts to open, first established temporarily at the Thepyada Arak Fresh Market building, but later moved to a permanent location on Ekkachai Road.

The name Bang Bon is reference to a type of herbaceous in taro family called bon (บอน, pronounced [bɔ̄ːn]) in Thai, also known internationally as elephant ears (Colocasia esculenta var. aquatilis). Bang Bon is therefore "a place of elephant ears".

The district has four sub-districts (khwaeng).

The missing number 1 is the sub-district that was dissolved and divided into four current sub-districts.

Agriculture is an important part of the area economy. Among Bang Bon's famous products are Nam Doc Mai mangos, coconuts, orchids, and lotus.^[2]

• Wat Bang Bon
• 7th Cycle Birthday Anniversary Park, Bang Bon, otherwise known as 9 Hills Park
• Sarasas Witaed Bangbon School
• Suksanareewittaya School, formerly and still colloquially known as Suksanari 2 School (shared with Samut Sakhon province)

• Chalerm Yubamrung – politician