Alan Frank Guttmacher

Alan Frank Guttmacher (May 19, 1898 – March 18, 1974) was an American obstetrician/gynecologist. He served as president of Planned Parenthood and vice-president of the American Eugenics Society. Guttmacher founded the American Association of Planned Parenthood Physicians, now known as the Association of Reproductive Health Professionals, as a forum for physicians to discuss the birth control pill and other advances in the field. He founded the Association for the Study of Abortion in 1964. He was a member of the Association for Voluntary Sterilization. The Guttmacher Institute is named after him.

In 1973, Guttmacher was one of the signers of the Humanist Manifesto II.