ADULT NAME CHANGE PETITIONS UNDER MISSOURI LAW
The right of an adult who resides in Missouri to change his or her name is provided for under the Missouri Statutes. Name change petitions are handled by the circuit courts, and should be filed in your county of residence.
The applicable section of the Missouri Statutes is § 527.720, which provides as follows:
527.270. Petition, where presented - contents - proceedings.
Hereafter every person desiring to change his or her name may present a petition to that effect, verified by affidavit, to the circuit court in the county of the petitioner's residence, which petition shall set forth the petitioner's full name, the new name desired, and a concise statement of the reason for such desired change; and it shall be the duty of the judge of such court to order such change to be made, and spread upon the records of the court, in proper form, if such judge is satisfied that the desired change would be proper and not detrimental to the interests of any other person.
(RSMo 1939 § 1706)