| Tseki | |
| Other Name: | Mtsekana |
| Pushpin Map: | South Africa Free State#South Africa |
| Coordinates: | -28.581°N 28.774°W |
| Subdivision Type: | Country |
| Subdivision Name: | South Africa |
| Subdivision Type1: | Province |
| Subdivision Name1: | Free State |
| Subdivision Type2: | District |
| Subdivision Name2: | Thabo Mofutsanyane |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Maluti-a-Phofung |
| Subdivision Type4: | Main Place |
| Established Title: | Established |
| Leader Party: | ANC |
| Leader Title: | Councillor |
| Area Footnotes: | [1] |
| Area Total Km2: | 3.56 |
| Population Total: | 7888 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Racial makeup (2011) |
| Demographics1 Title1: | Black African |
| Demographics1 Info1: | 99.8% |
| Demographics1 Title2: | Coloured |
| Demographics1 Info2: | 0.1% |
| Demographics1 Title3: | Indian/Asian |
| Demographics1 Title4: | White |
| Demographics1 Title5: | Other |
| Demographics Type2: | First languages (2011) |
| Demographics2 Title1: | Sotho |
| Demographics2 Info1: | 94.2% |
| Demographics2 Title2: | Zulu |
| Demographics2 Info2: | 2.0% |
| Demographics2 Title3: | Sign language |
| Demographics2 Info3: | 1.4% |
| Demographics2 Title4: | Afrikaans |
| Demographics2 Info4: | 1.1% |
| Demographics2 Title5: | Other |
| Demographics2 Info5: | 1.3% |
| Timezone1: | SAST |
| Utc Offset1: | +2 |
| Postal Code Type: | Postal code (street) |
| Postal Code: | 9874 |
| Postal2 Code Type: | PO box |
| Area Code Type: | Area code |
| Area Code: | 058 |
Tseki is a town in Thabo Mofutsanyane District Municipality in the Free State province of South Africa. It is one of the oldest kasis in Qwaqwa (Phuthaditjhaba). Together with Thaba Bosiu, Bolata, Makwane, Puelong and Thaba Ntsho they were the first places where people settled when Qwaqwa was first formed by the apartheid government.