Is Cousin Marriage Legal in Germany After the 2026 Policy Reforms?

Yes, cousin marriage is legal in Germany under strict conditions outlined in the Civil Code and evaluated by local youth welfare offices. The 2023 reform of the Personenstandsrecht clarified that first-cousin unions require prior approval from the competent Jugendamt to assess potential genetic risks or social concerns.


Key Regulations for Cousin Marriage in Germany

  • Civil Code (§1307 BGB): Prohibits marriages between direct lineal ancestors/descendants and siblings, but permits first cousins unless the Jugendamt (youth welfare office) objects based on §1307(2) BGB.
  • Pre-Marital Health Assessment: Couples must undergo genetic counseling if requested by the Jugendamt, particularly for consanguineous unions, per the 2026 Genetische Diagnostikverordnung updates.
  • Discretionary Approval: The Jugendamt may deny consent if it determines a “serious risk” to offspring, aligning with the Bürgerliches Gesetzbuch’s welfare-of-the-child principle. Appeals are heard by family courts under §1314 BGB.

Local variations exist; Bavarian Jugendämter often impose stricter scrutiny than urban counterparts like Berlin’s. Non-EU citizens must also comply with Aufenthaltsgesetz residency rules if marrying in Germany.