Turkish citizenship law is based primarily on the principle of ius sanguinis (by descent). Turkish descendants may be eligible to acquire citizenship regardless of the place of birth.

Article 7 of the Turkish Citizenship Law regulates the descent. As per the article, a child in any of the following cases shall acquire Turkish citizenship regardless the place of birth:

a child born to a Turkish mother and through a Turkish father in wedlock
a child born to a foreign mother and through a Turkish father in wedlock
a child born to a Turkish mother and through a foreign father in wedlock
a child born to a Turkish mother and through a foreign father out of wedlock
a child born to a foreign mother and through a Turkish father out of wedlock provided that the principles and procedures ensuring the establishment of descent are met. It may be by marriage, acknowledgment of the father, by a court decision according to Turkish Civil Law or in any other possible ways according to the law that is going be applied (e.g. law of the State that mother is a citizen of, law of the child's birth place, law of mother or father's residence).