| Official Name: | Tha Chang |
| Native Name: | ท่าช้าง |
| Native Name Lang: | th |
| Settlement Type: | Amphoe |
| Subdivision Type: | Country |
| Subdivision Name: |  Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sing Buri |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Thon Samo |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | Amphoe established |
| Population Total: | 16257 |
| Population As Of: | 2007 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 16140 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 1705 |
| Timezone: | THA |
| Utc Offset: | +7 |
| Coordinates: | 14.7617°N 100.39°W |
Tha Chang (Thai: ท่าช้าง, in Thai pronounced as /tʰâː t͡ɕʰáːŋ/) is a district (amphoe) in the southern part of Sing Buri province, central Thailand.
Three tambons of Phrom Buri district were separated to create the minor district (king amphoe) Tha Chang in 1960.[1] It was upgraded to a full district in 1963.[2]
The Noi river is the main water resource of the district. It is a fertile river and has a wide river sand beach. The area was previously used to feed royal elephants.
Neighboring districts are (from the west clockwise) Khai Bang Rachan, Mueang Sing Buri and Phrom Buri of Sing Buri Province, and Chaiyo and Pho Thong of Ang Thong province.
The district is subdivided into 4 subdistricts (tambon), which are further subdivided into 23 villages (muban). Thon Samo is a subdistrict municipality (thesaban tambon) which covers most of the tambon Thon Samo and Phikun Thong. There are further 2 Tambon administrative organizations (TAO).
| No. | Name | Thai | Inh. | |
|---|---|---|---|---|
| 1. | Thon Samo | ถอนสมอ | 6,400 | |
| 2. | Pho Prachak | โพประจักษ์ | 3,572 | |
| 3. | Wihan Khao | วิหารขาว | 1,997 | |
| 4. | Phikun Thong | พิกุลทอง | 3,207 |