| Official Name: | Bang Bon Tai |
| Native Name: | บางบอนใต้ |
| Settlement Type: | Khwaeng |
| Coordinates: | 13.6391°N 100.3981°W |
| Subdivision Type: | Country |
| Subdivision Type2: | Province |
| Subdivision Name2: | Bangkok |
| Subdivision Type3: | Khet |
| Subdivision Name3: | Bang Bon |
| Area Total Km2: | 8.939 |
| Area Footnotes: | [1] |
| Population As Of: | 2020 |
| Population Total: | 24860 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Postal Code Type: | Postal code |
| Blank Name: | TIS 1099 |
Bang Bon Tai (Thai: บางบอนใต้, in Thai pronounced as /bāːŋ bɔ̄ːn tâːj/) is a khwaeng (subdistrict) of Bang Bon District, in Bangkok, Thailand. In 2020, it had a total population of 24,860 people.[2]
Bang Bon Tai is connected with Maha Chai (downtown Samut Sakhon) by the Maeklong Railway of the State Railway of Thailand (SRT). Bang Bon, Kan Kheha, Rang Sakae (defunct), Rang Pho, Sam Yaek and Phromdaen are the stations of the area. They were all located on the border with their neighbouring Samae Dam of Bang Khun Thian District.
Bang Bon Tai is connected to Maha Chai by Ekkachai Road (Highway 3242). Kanchanaphisek Road (Outer Ring Road) also passes the area.