The Turkish Civil Code permits a married woman to use her maiden name only if the maiden name is used in conjunction with her husband’s surname. Three applicants, each in separate petitions to courts of first instance, sought to use their maiden names only. The courts of first instance applied to the Constitutional Court, which denied the request because the legislature did not abuse its discretion in determining that the husband’s surname should be the family surname, and this did not violate the Constitution’s equality principle. The Court reasoned that surnames are important for identifying not only the individual, but also the family and ancestry. Consequently, the law requiring women to take their husbands’ surnames benefits public welfare and order. The Court also reasoned that having (the husband’s) surname is a personal right that cannot be renounced or alienated. Moreover, the fact that the surname is an individual right does not mean that the legislature cannot act to ensure public welfare and order. The Constitution states that the family is the foundation of the Turkish society and requires the State to promulgate necessary regulations to preserve the family.