| Official Name: | Tha Tum |
| Native Name: | ท่าตูม |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Surin |
| Subdivision Type2: | Seat |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 97390 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 32120 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 3203 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 15.3183°N 103.675°W |
Tha Tum (Thai: ท่าตูม, in Thai pronounced as /tʰâː tūːm/) is a district (amphoe) in the northern part of Surin province, northeastern Thailand.
Neighboring districts are (from the east clockwise): Rattanaburi, Sanom and Chom Phra of Surin Province; Satuek of Buriram province; Chumphon Buri of Surin; Kaset Wisai and Suwannaphum of Roi Et province.
The district is divided into 10 sub-districts (tambons), which are further subdivided into 165 villages (mubans). Tha Tum is a township (thesaban tambon) which covers parts of tambon Tha Tum. There are a further 10 tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Tha Tum | ท่าตูม | 22 | 19,198 | ||
| 2. | Krapho | กระโพ | 20 | 15,789 | ||
| 3. | Phrom Thep | พรมเทพ | 22 | 7,969 | ||
| 4. | Phon Khrok | โพนครก | 16 | 9,344 | ||
| 5. | Mueang Kae | เมืองแก | 19 | 10,173 | ||
| 6. | Ba | บะ | 15 | 6,555 | ||
| 7. | Nong Bua | หนองบัว | 11 | 7,417 | ||
| 8. | Bua Khok | บัวโคก | 19 | 9,700 | ||
| 9. | Nong Methi | หนองเมธี | 11 | 5,976 | ||
| 10. | Thung Kula | ทุ่งกุลา | 10 | 5,269 |