Illinois Change of Name address is a legal process which allows an individual to change their name in the state of Illinois. The process involves filing a Petition for Change of Name with the Circuit Court Clerk in the county where the individual resides. The individual must also notify the Department of Public Health and the Secretary of State. There are three types of Illinois Change of Name address: adult, minor, and organizational. An adult Change of Name involves filing a Petition for Change of Name with the Circuit Court Clerk in the county of residence and providing a birth certificate, valid photo ID, and two letters of good character. A minor Change of Name involves filing a Petition for Change of Name with the Circuit Court Clerk in the county of residence and providing a birth certificate, valid photo ID for the parent or legal guardian, and two letters of good character. An organizational Change of Name involves filing a Petition for Change of Name with the Circuit Court Clerk in the county of residence and providing a certificate of good standing, valid photo ID for a representative of the organization, and two letters of good character.