| Official Name: | Tha Sa-at |
| Native Name: | ท่าสะอาด |
| Settlement Type: | Subdistrict |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type2: | Province |
| Subdivision Name2: | Bueng Kan |
| Subdivision Type3: | District |
| Subdivision Name3: | Seka District |
| Population As Of: | 2010 |
| Population Total: | 9,526 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Postal Code Type: | Postal code |
| Blank Name: | TIS 1099 |
Tha Sa-at is a sub-district (tambon) in Seka District, in Bueng Kan Province, northeastern Thailand. As of 2010, it had a population of 9,526 people, with jurisdiction over 13 villages.[1]