Can children have any last names?

Legal analysis: Everyone has his own name right, and parents can't change their children's names at will. From a legal point of view, it is not for parents to decide who the child's surname is, but to follow the requirements of the law, otherwise it may be legally responsible for changing the name. Both father and mother have the right to give their children their surnames. According to the law, there are other surnames that can be used as children's surnames, and both grandma and grandma can change them if they meet the requirements. However, it is not the parents who agree to change their children's surnames, and the children's surnames can be picked up casually.

Legal basis: Article 115 of the Civil Code of the People's Republic of China states that a natural person should take his father's surname or his mother's surname, but in any of the following circumstances, he may choose a surname other than his father's surname and his mother's surname: (1) Choose the surname of other lineal elders and blood relatives; (2) Choosing the surname of the supporter because of the support of someone other than the legal supporter; (three) there are other legitimate reasons that do not violate public order and good customs. The surnames of natural persons of ethnic minorities can follow the cultural traditions and customs of their own nation.