Section 3101.01 - Persons who may be joined in marriage - minor to obtain consent(A) Except as provided in section 3101.02 of the Revised Code, only male persons of the age of eighteen years, and only female persons of the age of eighteen years, not nearer of kin than second cousins, and not having a husband or wife living, may be joined in marriage. A marriage may only be entered into by one man and one woman.(B)(1) Any marriage between persons of the same sex is against the strong public policy of this state. Any marriage between persons of the same sex shall have no legal force or effect in this state and, if attempted to be entered into in this state, is void ab initio and shall not be recognized by this state.(2) Any marriage entered into by persons of the same sex in any other jurisdiction shall be considered and treated in all respects as having no legal force or effect in this state and shall not be recognized by this state.(3) The recognition or extension by the state of the specific statutory benefits of a legal marriage to nonmarital relationships between persons of the same sex or different sexes is against the strong public policy of this state. Any public act, record, or judicial proceeding of this state, as defined in section 9.82 of the Revised Code, that extends the specific statutory benefits of legal marriage to nonmarital relationships between persons of the same sex or different sexes is void ab initio. Nothing in division (B)(3) of this section shall be construed to do either of the following: (a) Prohibit the extension of specific benefits otherwise enjoyed by all persons, married or unmarried, to nonmarital relationships between persons of the same sex or different sexes, including the extension of benefits conferred by any statute that is not expressly limited to married persons, which includes but is not limited to benefits available under Chapter 4117. of the Revised Code;(b) Affect the validity of private agreements that are otherwise valid under the laws of this state.(4) Any public act, record, or judicial proceeding of any other state, country, or other jurisdiction outside this state that extends the specific benefits of legal marriage to nonmarital relationships between persons of the same sex or different sexes shall be considered and treated in all respects as having no legal force or effect in this state and shall not be recognized by this state.Amended by 132nd General Assembly, HB 511,§1, eff. 4/8/2019.Effective Date: 5/7/2004 .