You can get German citizenship through grandparents if an unbroken chain of German citizenship runs from your grandparent, through your parent, to you — or if the chain broke because of Nazi persecution or gender-discriminatory old laws, in which case a specific restoration or declaration pathway can repair it. The question isn’t really whether your grandparent was German. It’s whether that citizenship survived intact through each generation, and if not, why it was lost.
The Chain of Descent Test
German citizenship passes by descent, not birthplace. A child born to a German citizen is German, no matter where the birth happens.1Federal Foreign Office. Certificate of Citizenship For a grandparent-based claim, that means two handoffs had to work: your grandparent had to still be a German citizen when your parent was born, and your parent had to still be a German citizen when you were born.
If both handoffs held, you are already a German citizen and simply need to prove it by applying for a certificate of citizenship. If one of them failed, you are not automatically German, but you may still qualify under one of the restoration pathways below.
Where the Chain Commonly Breaks
Most grandparent claims succeed or fail at this step. A handful of events routinely stripped a German ancestor of citizenship before the next generation was born.
Naturalizing in Another Country
Voluntarily taking another country’s citizenship is the most common reason German citizenship was lost.2Federal Foreign Office. Loss of German Citizenship If your grandparent became a U.S., Canadian, or other foreign citizen before your parent was born, they almost certainly lost their German citizenship at that moment, and your parent was born to a non-German.
The rule shifted several times:
- Before January 1, 2000: German citizenship was lost on foreign naturalization if the person was living outside Germany.
- January 1, 2000 through August 27, 2007: Lost on foreign naturalization regardless of residence.
- From August 28, 2007: Naturalizing in another EU country or Switzerland no longer caused loss. Naturalizing elsewhere still did, unless the person got advance permission to retain German citizenship.
- From June 27, 2024: Germans can acquire any foreign citizenship without losing German citizenship.3Federal Foreign Office. The New Nationality Law as of 27 June 2024
The 2024 change is not retroactive. A grandparent who naturalized as a U.S. citizen in 1955 lost German citizenship in 1955, and nothing since has undone that automatically.
The Pre-1914 Ten-Year Residency Rule
Under the citizenship law in force from 1871 to 1914, any German who lived outside Germany for more than ten consecutive years automatically lost citizenship. Because most German immigration to the United States happened in that era, it is generally not possible to base a citizenship claim on ancestors who left Germany before roughly 1904.4Federal Foreign Office. German Citizenship If your family’s German roots are 19th-century, this rule is likely the obstacle, and the Nazi persecution pathway is the most common workaround.
Foreign Military Service
Since January 1, 2000, voluntarily joining the armed forces of a country whose citizenship you also hold has caused loss of German citizenship, unless the Federal Ministry of Defence gave prior consent.5Federal Foreign Office. Loss of German Citizenship Since July 6, 2011, blanket consent has covered service in EU, EFTA, and NATO militaries, including the U.S. armed forces. A German-American who enlisted before that date without individual permission likely lost citizenship; someone who enlisted after did not.
Restoration for Descendants of Nazi Persecution Victims
Article 116(2) of the Basic Law guarantees that former German citizens stripped of their citizenship on political, racial, or religious grounds between January 30, 1933, and May 8, 1945, can have it restored on application, and the same right extends to their descendants.6Gesetze im Internet. Basic Law for the Federal Republic of Germany This pathway does not require an unbroken chain. Even if your grandparent’s citizenship was revoked and never passed to your parent, you can still claim as a descendant.
A 2021 amendment, the Fourth Act Amending the Nationality Act, added a further right to naturalization for people who lost or were denied citizenship because of Nazi persecution but who didn’t technically fall within the original Article 116(2) wording — for example, families who fled Germany and naturalized elsewhere under duress. That expanded right also passes to all descendants.7Federal Foreign Office. Naturalization for Individuals Whose Families Were Persecuted by the Nazi Regime
Naturalization under this pathway is free of any government filing fee.8Federal Foreign Office. Information Sheet on Naturalization Within the Context of Restitution You still pay for documents and translations.
Declaration for Gender-Discrimination Gaps
Old German law didn’t treat mothers and fathers equally. A child born in wedlock to a German mother and a foreign father before January 1, 1975, didn’t acquire German citizenship, because in that era citizenship in a marriage passed only through the father. A child born out of wedlock to a German father and a foreign mother before July 1, 1993, was excluded for the mirror reason, because paternal citizenship only passed automatically inside marriage.9Federal Foreign Office. Declaration or Application for German Citizenship if You Do Have a German Mother or Father but Never Were Considered German
Section 5 of the Nationality Act, added by the same 2021 Fourth Act, gives these people and their descendants a right of declaration. If your grandmother was German but her citizenship didn’t pass to your parent because of the pre-1975 rule, you can declare. If your grandfather was German but your parent was born out of wedlock and didn’t acquire citizenship through him under the pre-1993 rule, you can declare.10Gesetze im Internet. Nationality Act – Section 5
The right is time-limited. Section 5 runs for ten years from the Fourth Act’s entry into force on August 20, 2021, so declarations must be filed before August 19, 2031. After that date the right expires. Document gathering and consular submission both take time, so families relying on this pathway should not treat 2031 as far off.
Older Descent Rules by Date
The rules that applied on the date your parent was born are the ones that decide whether the chain held. For children born in wedlock:
- January 1, 1914 through December 31, 1974: Citizenship passed only through the father. A German mother married to a foreign father could not pass citizenship to her child.11Federal Foreign Office. Obtaining German Citizenship
- January 1, 1975 onward: Citizenship passes through either parent.
For children born out of wedlock, citizenship traditionally passed only through the mother. A German father could not pass citizenship to a child born outside marriage until July 1, 1993, provided paternity was legally established.
If the chain broke because these older rules applied, Section 5 is designed precisely to repair that.
A Generation Limit to Know About
Even with a clean chain, one newer rule can block citizenship from reaching a child born abroad. Under Section 4(4) of the Nationality Act, a child born abroad does not automatically acquire German citizenship if the German parent was also born abroad after December 31, 1999, and lives abroad at the child’s birth, and if the child gains another nationality at birth (for example, U.S. citizenship by being born in the United States).12Gesetze im Internet. Nationality Act – Section 4
The way to preserve citizenship in that situation is to register the child’s birth with the competent German consulate or registry office within one year of the birth.13Federal Foreign Office. German Citizenship Acquired Through Notification of Birth Occurring Abroad Miss that window and the child does not acquire German citizenship at all. The rule does not apply to descendants of people who got German citizenship through the Article 116 persecution pathway or the Section 5 declaration pathway.12Gesetze im Internet. Nationality Act – Section 4
You Can Keep Your Current Citizenship
Since June 27, 2024, Germany allows dual and multiple citizenship without restriction. Germans acquiring a foreign nationality no longer lose German citizenship, and people acquiring German citizenship no longer have to give up what they already hold.3Federal Foreign Office. The New Nationality Law as of 27 June 2024 This applies whether you claim by descent, restoration, or declaration.
The change does not reach backward. If your grandparent or parent lost German citizenship by naturalizing abroad before June 27, 2024, that loss still stands.14Federal Foreign Office. Germany’s Nationality Law – Significant Changes The new rule matters for you today: you can pursue German citizenship now without any risk to your current nationality.
Documents You Will Need
Proving the chain means gathering civil records for every generation between you and your German ancestor. At a minimum:
- Birth certificates for you, your parent, and your German grandparent, and possibly your great-grandparent if the chain runs further back
- Marriage certificates for your parents and grandparents
- Death certificates for deceased ancestors in the chain
- Proof of your ancestor’s German nationality, such as an old German passport, naturalization records, or civil registration documents from Germany
- Evidence of persecution or of the specific loss of citizenship, if you’re applying under Article 116 or Section 5
All non-German documents need certified German translations, and the procedure itself is conducted in German.15Federal Office of Administration. Citizenship
Where to File
If you live outside Germany, start with the German embassy or consulate in your country of residence. They will help you identify whether to apply for a certificate of citizenship (confirming you already hold it by descent) or to file for restoration under Article 116 or declaration under Section 5. Some applications, particularly Article 116 restoration claims, go directly to the Federal Office of Administration (BVA) in Germany.16Federal Foreign Office. Law on Nationality Article 116 restoration and Section 15 restitution applications carry no government filing fee.8Federal Foreign Office. Information Sheet on Naturalization Within the Context of Restitution Filing a complete file the first time is the single biggest thing you can do to move the case forward, since a missing certificate typically pushes a case to the back of the queue.