The Illinois Notice Of Filing Of Petition For Change Of Name is a form that is used when an adult resident of Illinois files a petition to legally change their name. This form must be completed and filed with the Clerk of the Circuit Court in the county in which the petitioner resides. The document includes the petitioner’s name, address, date of birth, and the reason for the name change. Additionally, it requires the petitioner to state the new name they wish to use, and to provide two witnesses to attest to their identity. There are two types of Illinois Notice of Filing of Petition for Change of Name; one for adults, and one for minors.