The Washington Petition For Change of Name is a process administered by the Washington State Superior Courts that allows individuals to change their name. The petitioner must be a resident of Washington State and must file an application in the county court in which they reside. The petition must include the current and proposed name, the reasons for the change, and the petitioner’s legal age and residence. If the petitioner is a minor, they must provide the consent of their parent or guardian. There are three types of Washington Petition for Change of Name: Adult Petition, Minor Petition, and Marriage Petition. An Adult Petition is used to change an adult’s name. A Minor Petition is used to change the name of a minor under the age of 18. A Marriage Petition is used to change the name of both parties in a marriage. For all petitions, the petitioner must attend a court hearing and present their case for the name change.