When my son was born, katakana surnames were not permitted. At some point, this law seems to have been changed, and children born now may be registered with a katakana "western" surname. When did this change happen?

  • 1
    What was the alternative to registering a katakana surname if that's all the parents had?
    – Leebo
    Oct 5, 2021 at 6:19

1 Answer 1


Maybe since 1985.

From here

ところが、この「日本的氏名を用いる」という規定は1980年の国籍法、戸籍法の改正に伴って削除された。読売新聞が87年6月に報じた「韓国姓への復姓認める 帰化二世が申し立て/京都家裁」という記事に、以下のような記述がある。



I'm not sure why the above says 1980, but 六十年 means 昭和60年=1985, which looks like when the law was changed (by googling).

  • 1
    1980年 could be a typo for 1980年代.
    – aguijonazo
    Oct 5, 2021 at 12:08

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