Bang Si Thong
Bang Si Thong is one of the nine subdistricts of Bang Kruai District, in Nonthaburi Province, Thailand. The subdistrict is bounded by Bang Krang, Bang Si Mueang, Bang Phai, Bang Kruai, Wat Chalo and Bang Khanun subdistricts. In 2020, it had a total population of 11,426 people.
Administration
Central administration
The subdistrict is subdivided into 5 administrative villages.| No. | Name | Thai |
| 1. | Ban Wat Sai | บ้านวัดไทร |
| 2. | Ban Wat Bang Oi Chang | บ้านวัดบางอ้อยช้าง |
| 3. | Ban Wat Daeng Pracha Rat | บ้านวัดแดงประชาราษฎร์ |
| 4. | Ban Wat Ruak Bang Si Thong | บ้านวัดรวกบางสีทอง |
| 5. | Ban Bang Si Thong | บ้านบางสีทอง |