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Surname Сэра (Sera , 世良 , Сэра ) , globally, is a common family name. The last name Сэра is characteristic of Lesotho, where it is quite a common surname, Hungary, where it is quite a rare surname, and Botswana. Not in comparison with a country's population, the name is most common in China, India, and Indonesia. More prevalently, Сэра is the forename as well as the last name.