2024 Missouri Constitutional Amendment 3, also known as the Right to Reproductive Freedom Initiative, was a constitutional amendment that appeared on the ballot on November 5, 2024. The initiative amended the Constitution of Missouri to legalize abortion in Missouri until fetal viability. On December 23, 2024, the measure amended the Missouri Constitution to provide the right for reproductive freedom, defined as "the right to make and carry out decisions about all matters relating to reproductive health care, including but not limited to prenatal care, childbirth, postpartum care, birth control, abortion, miscarriage care, and respectful birthing conditions." The amendment narrowly passed.