Lithuanian citizenship - Lithuanian Dual Passport Did you know that if you have Lithuanian ancestry, you might be eligible for Lithuanian citizenship and an EU passport? This means you can live, work and study in any of the 28 EU member countries with no restrictions. Do you have any ancestors from Lithuanian descent? Perhaps a grandparent, parent or other relatives in your direct bloodline? Lithuanian citizenship may be acquired on certain bases provided in the Law of Republic of Lithuania on citizenship. Lithuanian immigration has resulted in hundreds of thousands of people with Lithuanian ancestry living outside Lithuania. Large waves of Lithuanians migration occurred during the 19th and 20th century. Communities in the United States, Australia, South Africa and Canada make up the largest part of this diaspora. Lithuanian Dual Passport.