BULGARIA 

CITIZENSHIP: Citizenship is based upon the Law on Bulgarian Citizenship, dated November 1998.

• BY BIRTH: Birth within the territory of Bulgaria does not automatically confer citizenship. The exception is a child born in Bulgaria to unknown or stateless parents.
• BY DESCENT: Child, at least one of whose parents is a citizen of Bulgaria, regardless of the country of birth.
• OTHER: The following are eligible for Bulgarian citizenship through other than the normal naturalization process:
• A stateless person, one of whose parents is of Bulgarian descent.
• A child under 14, adopted by Bulgarian parents.
• Refugees fleeing persecution.
• Persons who have greatly contributed to Bulgarian society.
• BY NATURALIZATION: Bulgarian citizenship may be acquired upon fulfillment of the following condition: Person has resided legally in Bulgaria for at least five years.

DUAL CITIZENSHIP:  RECOGNIZED.

LOSS OF CITIZENSHIP:

• VOLUNTARY: Voluntary renunciation of Bulgarian citizenship is permitted by law. Contact the Bulgarian Embassy for details and proper paperwork.
• INVOLUNTARY: The following are grounds for involuntary loss of naturalized citizenship:
• Naturalized citizenship was obtained through fraud or false statement. This revocation only affects the person who made the false statements. The person's spouse and children may retain Bulgarian citizenship.
• Person commits criminal acts against the security of the state outside of Bulgaria.