| Official Name: | Bang Bua Thong |
| Native Name: | บางบัวทอง |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Nonthaburi |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Lahan |
| Subdivision Type3: | Tambon |
| Subdivision Name3: | 8 |
| Subdivision Type4: | Muban |
| Subdivision Name4: | 73 (administrative) |
| Established Title: | District established |
| Established Date: | 1902 |
| Population Total: | 273,232 |
| Population As Of: | 2017 |
| Population Density Km2: | 2,346.56 |
| Area Total Km2: | 116.439 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 11110 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 1204 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 13.9686°N 100.4056°W |
Bang Bua Thong (th|บางบัวทอง, pronounced as /th/) is a district (amphoe) of Nonthaburi province, central Thailand.
Neighbouring districts are (from north clockwise) Lat Lum Kaeo (Pathum Thani province), Pak Kret, Mueang Nonthaburi, Sai Noi, and Bang Yai.
The district is divided into eight sub-districts (tambons), which are further subdivided into 81 villages (mubans). There are five town municipalities (thesaban mueang): Bang Bua Thong, which covers tambons Sano Loi and parts of tambons Bang Bua Thong, Bang Rak Yai, Phimon Rat, and Bang Rak Phatthana; Phimon Rat, which covers most parts of the tambon of the same name; Bang Rak Phatthana, which covers most parts of the tambon of the same name; Bang Khu Rat, which covers the tambon of the same name; and Mai Bang Bua Thong, which covers most parts of tambons Bang Bua Thong. There are a further three tambon administrative organizations (TAO).
| No. | Name | Thai | Villages | Pop.[1] | |
|---|---|---|---|---|---|
| 1. | Sano Loi | โสนลอย | 6 | 9,694 | |
| 2. | Bang Bua Thong | บางบัวทอง | 14 | 60,461 | |
| 3. | Bang Rak Yai | บางรักใหญ่ | 11 | 9,050 | |
| 4. | Bang Khu Rat | บางคูรัด | 10 | 39,305 | |
| 5. | Lahan | ละหาร | 9 | 22,438 | |
| 6. | Lam Pho | ลำโพ | 8 | 10,604 | |
| 7. | Phimon Rat | พิมลราช | 8 | 49,808 | |
| 8. | Bang Rak Phatthana | บางรักพัฒนา | 15 | 71,872 |