Okla. Stat. tit. 12, § 12-1637: Exclusiveness of statutory remedy

After May 19, 1953, no natural person in this state may change

his or her name except as provided in Sections 1631 through 1635 of

this title and Section 90.4 of Title 10 of the Oklahoma Statutes and

Section 1-321 of Title 63 of the Oklahoma Statutes, other than by

marriage, as prescribed in Sections 5, 6, and 8 of Title 43 of the

Oklahoma Statutes, or by decree of divorce, as prescribed in Section

121 of Title 43 of the Oklahoma Statutes, or by adoption, as

prescribed in Section 7505-3.1 of Title 10 of the Oklahoma Statutes.