Arizona Application For Change Of Name For Minor Child is a legal form used by Arizona residents aged 18 or younger to change their legal name. The application is typically used when a minor wishes to change their name to match a parent or guardian's name, reflect a marriage, or for any other personal reason. This form must be signed by the minor's legal guardian and is then filed with the Arizona Superior Court of the county in which the minor resides. There are two types of Arizona Application For Change Of Name For Minor Child forms: one for a minor who is under the age of 14, and one for a minor who is 14 or older.