Last name Ketu (Ketu 
, เกตุ , Quieto 
) , worldwide, is quite a rare surname. The surname Ketu is characteristic of Sub-Saharan Africa, particularly Ghana, where it is quite a rare surname, Namibia, and Cameroon. Not in comparison with a country's population, it is commonest in India, Ghana, and Cameroon. Likewise, Ketu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ketu | Ghana, Nigeria, Thailand, India, Cameroon |
| เกตุ | Thailand |
| Quieto | Italy, United States, Argentina, Canada, Brazil |
| miriama ketu graduate of Te Kura Toi Whakaari o Aotearoa: New Zealand Drama School in 2006 |
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| lesley ketu New Zealand rugby union player (1987-), NZ (b. 1987) |
|