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The claim

選択的夫婦別姓が実現すると戸籍制度が崩壊する?

Original publisher’s rating

誤り

Reviewed by 日本ファクトチェックセンター(JFC) ↗ ·

Read the original fact check ↗

Original review summary

The review says the claim is false: introducing optional separate surnames would not change the family register’s function of officially recording and certifying nationality and family relationships. It cites government explanations and past justice ministers who said the register’s function and importance would remain unchanged.[S1]

Additional context

The review describes the family register as recording and certifying Japanese citizens’ nationality and family relationships. [S1]

On April 30, 2025, the Constitutional Democratic Party submitted a bill that would let couples choose between a shared surname and keeping their premarital surnames; it proposed deciding the children’s surname at marriage. [S1]

Research date:

Sources and attribution

  1. [S1] 日本ファクトチェックセンター(JFC) original review

    Original review · Retrieved October 16, 2026

Original review: 日本ファクトチェックセンター(JFC). Structured data compiled by Data Commons under CC BY 4.0. Publisher article content is subject to its own terms. Summaries and context are produced by PeakMetrics with AI assistance.

Updated