The March for Women's Lives brings between 500,000 and 800,000 protesters, mostly pro-choice, to Washington D.C. to protest the Partial-Birth Abortion Ban Act of 2003, and other restrictions on abortion.

The March for Women's Lives (2004) was a protest demonstration held on April 25, 2004 at the National Mall in Washington, D. C. There was approximately 1.3 million participants. The demonstration was led by seven groups; National Organization for Women, American Civil Liberties Union, Black Women’s Health Imperative, Feminist Majority, NARAL Pro Choice America, National Latina Institute for Reproductive Health, and Planned Parenthood Federation of America. The march was intended to address topics such as abortion rights, reproductive health care, women's rights, and others.