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Family name Onceya (Onceya ) , globally, is a rare surname. The last name Onceya is habitual in Sub-Saharan Africa, particularly South Africa, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Onceya | South Africa |
Zama, Mzoli, Aviwe, Khanya, Yonela, Alunamda, Thozama, Mboniseni, Siphokazi, Masibulele, Lindikhaya, Thembelani, and Ntombizodwa