Citizenship by Marriage: Countries & Requirements (2025)

What is Citizenship by Marriage: Countries & Requirements (2025)?

Citizenship by marriage is one of the fastest ways to obtain a second passport, allowing spouses of citizens to gain nationality through a simplified naturalization process. Many countries, including Portugal, Spain, Brazil, and Argentina, offer fast-track citizenship to foreign spouses, often requiring fewer years of residency. While some nations grant immediate citizenship, others require proof of a genuine relationship, residency, or cultural integration. Understanding the requirements, processing times, and legal steps can help you navigate the process smoothly. Explore the best countries for marriage-based citizenship and secure your global mobility today!