Find a European country that has a second-citizenship program. Many countries offer these programs in exchange for a service, such as an investment by the new citizen or an ability the new citizen has that the country needs. Citizenship requirements vary throughout European countries. To become a citizen, some countries such as Sweden require citizenship through birth or marriage, while others, such as Belgium, require naturalization, according to EU Immigration.
Ensure that you are not already a dual citizen of a European country. If you were born in a European country or have a parent from one, you already may have dual citizenship. There are also other circumstances in which you may be eligible for dual citizenship without applying for it, such as work and residency requirements. Check a country's rules of citizenship and residency to see if you are eligible. All individuals with citizenship to a European country are eligible for a passport from that country.
If you are not already a citizen in the country you are seeking a secondary passport from, you must apply for citizenship. All European countries require paperwork showing your current citizenship, including, but not limited to, a birth certificate and/or passport. Citizenship generally also requires additional paperwork, such as proof of financial stability, and thorough knowledge of the country's culture, language and history as exhibited on tests administered by the Immigration department of the specific country. Each country's laws regarding immigration and citizenship differ.
Complete paperwork requisite for obtaining a secondary passport in a European country, which generally includes papers asking for general information such as name, address and occupation, and proof of citizenship.