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Worldwide, 博子 (Hiroko , 博子 ) is quite a common mostly female, but uncommonly male first name. The first name 博子 is characteristic of Japan, where it is quite a rare gender-neutral name, Benin, where it is a rare feminine name, and the United States. In absolute terms, it is the most numerous in Japan, the United States, and China. Much less frequently, 博子 is the last name as well as the forename.