Women in Japan period to 100 days and allows any woman who is not pregnant during the divorce to remarry immediately after divorce. The Civil Code of Japan requires legally married spouses to have the same surname. Although the law is gender-neutral, meaning that either spouse is allowed to change his/her name to that of the other spouse, Japanese women have traditionally adopt their husband’s family name and 96% of women continue to do so as of 2015. In 2015, the Japanese Supreme Court upheld the constitutionality of the law, noting that women could use their maiden names informally, and stating that it
Polish name married woman usually adopts her husband's name and the children usually bear the surname of the father. The wife may keep her maiden name ("nazwisko panieńskie") or add her husband's surname to hers, thus creating a double-barrelled name ("nazwisko złożone"). However, if she already has a double-barrelled name, she must leave one of the parts out—it is illegal to use a triple- or more-barrelled name. It is also possible, though rare, for the husband to adopt his wife's surname or to add his wife's surname to his family name (an example is businessman Zygmunt Solorz-Żak, who did both, taking his