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Family name Keai (可爱 , Keai , 科爱 ) , in the world, is a rare cognomen. The family name Keai is habitual in Papua New Guinea, where it is quite a rare surname, Malaysia, where it is a rare surname, and Singapore. Not in comparison with a country's population, the name is most common in China, Malaysia, and Papua New Guinea. More frequently, Keai is the forename as well as the last name.