Sweden - Passport & Nationality - Swedish Citizenship (Naturalisation)
A foreigner may be granted Swedish citizenship upon meeting certain requirements, including:
Holding a permanent residence permit, unless a citizen of a Nordic Council
country. For citizens of European Economic nations, limited residence permits for five years equate to a permanent residence permit.
5 years' residence in Sweden.
A number of exemptions apply to the residence period:
The residence period is reduced to 4 years for recognised refugees and stateless persons.
Citizens of other Nordic Council countries are only required to have two years' residence in Sweden.
Former Swedish citizens
Those employed on Swedish ships
Persons employed abroad by Swedish corporations
A person married to a Swedish citizen for at least 10 years, who does not live in his or her native country, and has 'strong ties' to Sweden
A person with previous long residence in Sweden