Tex. Fam. Code § 45.101 : FAMILY CODE — CHILD IN RELATION TO THE FAMILY — CHANGE OF NAME — CHANGE OF NAME — CHANGE OF NAME OF ADULT — Who May File; Venue TEXT PDF An adult may file a petition requesting a change of name in the county of the adult's place of residence. Tex. Fam. Code § 45.101 Amended by Acts 1995, 74th Leg., ch. 20, Sec. 1, eff. 4/20/1995.