Which foreign nationals are not eligible for dual-citizenship in Germany?

Which foreign nationals are not eligible for dual-citizenship in Germany?

Since 2024 Germany allows foreign residents from all countries to obtain dual-citizenship, but a number of countries don't allow their own citizens to naturalise elsewhere. So who can't become German and keep their home passport?

Mostly False: “Dual citizenship will become the rule in our citizenship law”

On January 8, 2025, Friedrich Merz, the Federal Chancellor of Germany, stated in an interview with the newspaper Welt that “Dual citizenship will thus become the rule in our citizenship law” and that “it will bring additional problems into the country.” To assess this statement, we first examine whether dual citizenship has indeed become the legal standard and how this is reflected in recent data. According to the 2024 microcensus, around 3.14 m…