Margaret Irving Handy (1889–1977) was a pioneering medical doctor who was one of the first to specialize in pediatric medicine. In 1945, she established the first mothers' milk bank at Delaware Hospital (now Wilmington Hospital) in Wilmington, Delaware. Handy was born in Smyrna, Delaware and was the daughter of L. Irving Handy, a U.S. Representative. She attended Goucher College and Johns Hopkins University School of Medicine from which she graduated in 1916. She was the first native-born female Delawarean to become a doctor and was also the state's first pediatrician.