Commentaries: Art. 267a

In the case of joint adoption and adoption by a single person, the minor may be given a new first name if there are good reasons for doing so. Prior to this, the child is heard in person in an appropriate manner by the competent authority or by a third party appointed for this purpose, unless this is inadvisable due to the child's age or for other good cause. If the child is at least twelve years of age, a change of name requires his or her consent.
The name of the child is determined in accordance with the provisions governing the legal effects of the parent-child relationship. These applymutatis mutandis to the adoption of the child by the registered partner of its mother or father.
The competent authority may authorise an adult to be adopted to continue using his or her existing name if there are good reasons for doing so.
The change of name of an adult to be adopted does not affect the naming of persons whose name is derived from the previous name of the person to be adopted, unless they expressly agree to a change of name.