Verdict
Yes — you can hold Germany and United States citizenship simultaneously.
Germany
Dual citizenship policy
Permitted for Article 116 restitution and StAG §15 cases. For standard descent: generally requires renunciation, but 2024 dual citizenship reform now permits it.
United States
Dual citizenship policy
Generally permitted — U.S. law does not require a citizen to choose between U.S. citizenship and another nationality.
Both Germany and United States permit dual citizenship. You can acquire, hold, and use both passports simultaneously without legal restrictions.
This assessment is based on each country's current nationality law. Dual citizenship rules can change — always verify with the relevant consulate or an immigration attorney before making decisions about renunciation or acquisition.