Hello, 1. "Can the child's name be changed after divorce?":
(1) If the child's name is changed after divorce: both the biological father and mother need to agree. .
(2) In your case: the child has not yet registered a household registration, and has not yet registered his name with the public security household registration management agency, so the issue of "name change" does not involve it. It is just a name given when registering the household registration, so: the biological father is not required Both mother and father agree.
(3) However, there is still a problem that restricts her from changing the name of her child, that is: when registering for household registration, the name on the owner’s certificate shall prevail. If she wants to change the name of her child when registering for registration or To change your surname, you have to go to the hospital where your child was born to change the birth certificate. This is very difficult and most hospitals will not change it.
2. "When registering, can the child's surname only follow that of his parents and cannot choose other surnames? For example, is it okay to follow his stepfather's surname?":
(1) The child's household registration can follow the father's or the mother's, but there is no requirement that the child must take the father's or mother's surname. However, in practice, the child's name generally follows the father's or the mother's.
(2) The child’s surname can follow the stepfather’s.