Surname ケティ (Ketty 
, Ketti 
, ケティ) , in the world, is quite a common family name. The surname ケティ is habitual in Cyprus, where it is quite a rare surname, Mauritius, and the Democratic Republic of the Congo. Not in comparison with a country's population, it is commonest in the Democratic Republic of the Congo, Indonesia, and Uganda. More prevalently, ケティ is the forename as well as the last name.