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Cognomen 小原 (Xiaoyuan , Obara , 小原 ) , globally, is a common last name. The surname 小原 is characteristic of Kenya, where it is quite a common surname, Poland, where it is quite a rare surname, and Taiwan. Not in comparison with a country's population, it is commonest in Kenya, Poland, and the Democratic Republic of the Congo. Likewise, 小原 is the forename as well as the last name.