
Quoting
How do I change a minor child's name?
The procedure for minor children is similar to the process for adults. There are two ways to change a minor child’s name.
As part of a divorce case or custody case. If there is a pending divorce or custody action, the name change of a minor child can be part of the divorce or custody proceeding. Include your request for name change in your Petition (if you are the petitioner) or Response (if you are the respondent) and the court can include the change in the final decree. See Iowa Code section 598.37.