Art. 37 PILA from 2022

Art. 37 IV. Name
1 The name of a person domiciled in Switzerland is governed by Swiss law. The name of a person domiciled abroad is governed by the law referred to by the rules of private international law of the state of domicile.
2 However, a person may request to have their name governed by the law of the state of their citizenship.
Es besteht kein Anspruch auf Aktualität und Vollständigkeit/Richtigkeit.