Name and Surname Change Lawsuit in Turkey
A person’s name and surname are far more than administrative labels — they are the most fundamental expressions of individual identity, recognized and protected under Turkish law as personal rights attached inseparably to the individual. When a name no longer reflects who a person is, or when it causes genuine hardship in daily life, Turkish law provides a legal pathway to change it through a formal court proceeding.
Legal Basis: Turkish Civil Code Article 27
The primary legal foundation for name and surname changes in Turkey is Article 27 of the Turkish Civil Code (Law No. 4721), which states: “A name may only be changed upon request to a judge, based on justifiable reasons. The change of name shall be registered and announced in the civil registry.”
This provision covers both the given name (first name) and the surname. Importantly, the law does not define what constitutes a “justifiable reason” — this determination is left to the discretion of the presiding judge, evaluated on a case-by-case basis. The courts have consistently interpreted this standard broadly, taking into account not only objective circumstances but also the personal and social situation of the applicant.
Which Court Handles Name Change Cases?
Name and surname change cases fall under the jurisdiction of the Civil Court of First Instance (Asliye Hukuk Mahkemesi). The competent court is the one located in the district where the applicant resides. The defendant in these cases is designated as the Provincial Population Directorate (Nüfus Müdürlüğü), not a private individual or family member — a common procedural mistake made by those who attempt to file without legal representation.
These cases are classified as non-contentious proceedings (çekişmesiz yargı) under Article 382 of the Code of Civil Procedure, which means simplified procedural rules apply. In practice, most name change cases conclude in a single hearing session and are resolved within approximately three months, provided the petition is properly prepared and supporting evidence is presented.
Justifiable Reasons Recognized by Turkish Courts
While the law leaves the definition of justifiable reasons open, decades of Court of Cassation (Yargıtay) decisions have shaped a well-established body of accepted grounds. A name or surname that carries a meaning considered offensive, ridiculous, or contrary to public morality constitutes one of the most commonly accepted grounds. Similarly, a name that is difficult to pronounce, that causes persistent confusion because it is shared with a relative, or that is associated with a person of notorious reputation has been recognized as a valid basis for change.
Religious or cultural identity shifts represent another recognized category. A person who converts to a different religion may seek to replace a name closely associated with their former faith, as courts have held that compelling someone to continue using such a name constitutes an unjustifiable restriction on personal freedom. Changes in nationality or citizenship status — for instance, a foreign national who becomes a Turkish citizen and wishes to adopt a more compatible name — are also accepted.
Gender identity changes naturally give rise to name change requests, which may be filed before, during, or after the legal gender reassignment process. Family-related grounds are equally common: following divorce, when a mother holds sole custody of her children, she may request that the children’s surname be changed to her own. The Court of Cassation has increasingly supported such requests in recent years.
Perhaps the most practically significant ground is the “arbitrary” name change (keyfi isim değişikliği) — a situation where the applicant simply does not feel an attachment to their registered name, or is known to everyone in their social and professional life by a different name. Courts have accepted that forcing a person to use a name they have never identified with is an unreasonable constraint. If someone has been called by a different name by family, colleagues, and neighbors for years, the judge may view that factual circumstance as sufficient justification on its own.
How the Lawsuit Process Works
The process begins with filing a petition (dava dilekçesi) with the competent Civil Court of First Instance. The petition must clearly state the applicant’s identity, the name or surname they wish to adopt, and the justifiable reasons for the change. Supporting evidence and witness information should be included at this stage. After the court reviews the petition and verifies that formal requirements are met, a hearing date is set. The Population Directorate sends an official representative to the hearing, as required by Article 36 of the Population Services Law (Law No. 5490).
Witness testimony is the most commonly used form of evidence in these cases. Witnesses confirm before the court, under oath, that the facts supporting the name change are accurate — for example, that the applicant has long been known by a different name in daily life. Judges may also request a collateral investigation by law enforcement to verify how the applicant is known in their social environment. In some hearings, judges have been known to check the contacts saved in witnesses’ mobile phones to confirm the name the applicant actually uses.
If the court is satisfied that justifiable reasons exist, it approves the name change. The ruling is then forwarded to the Press Advertising Authority (Basın İlan Kurumu) for public announcement in an official gazette. Once that announcement is published, the decision becomes final and is transmitted to the Population Directorate for registration in the civil registry. From that point on, the new name is automatically reflected in e-government systems, banking records, and other official platforms. The applicant may then apply to the Population Directorate — or to a Turkish consulate if abroad — to receive updated identity documents.
Surname Changes: Additional Considerations
Changing a surname involves somewhat stricter scrutiny than changing a given name, and typically requires stronger supporting evidence. When a man successfully changes his surname, the change automatically extends to his spouse and children under 18, without requiring separate proceedings. However, adult children must file their own independent lawsuit if they wish to adopt the new surname. When a woman changes her surname, children under 18 who already carry her surname are similarly updated, and new identity documents can be obtained directly from the Population Directorate.
It is also worth noting that the new name or surname must be compatible with the Turkish alphabet. Foreign names are permissible, but letters not found in the Turkish alphabet — such as W, Q, and X — cannot be used.
Documents and Other Consequences of a Name Change
Once a name change becomes final, it has legal effect across all official records. Updating documents such as passports, driver’s licenses, title deeds, diplomas, bank accounts, and insurance policies becomes necessary. For diplomas specifically, the applicant must present the court decision to the university’s student affairs office and request reissuance or an official annotation. Importantly, all prior rights, inheritances, contracts, and legal obligations associated with the former name remain valid and connected to the individual — no rights are lost as a result of the change.
It is also possible to file a name change lawsuit and a surname change lawsuit together in a single proceeding, which is often the more practical route when both changes are desired.
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