Nancy C. Andrews (born November 29, 1958) is an American biologist noted for her research on iron homeostasis. Andrews is currently Dean of the Duke University School of Medicine. Andrews grew up in Syracuse, New York. She earned a B.S. and M.S. from Yale University. She began her graduate studies with Joan Steitz at Yale University, studying molecular biophysics and biochemistry, before transferring to work with David Baltimore, earning an M.D.-Ph.D. at Harvard Medical School and M.I.T. (1985). She completed her postdoctoral work at Children's Hospital Boston. Andrews then joined the faculty at Harvard University in 1991, assuming an endowed chair in 2003, a position at the Dana-Farber Cancer Institute, and a position as Dean for Basic Sciences and Graduate Studies at Harvard Medical School. In 2007, Andrews left to take a position as the first female Dean of Medicine at Duke University. In this position, she is the only woman heading any of the top ten medical schools in the U.S. Andrews studied treatments for and molecular processes governing iron disease, such as anemia (iron deficiency) and hemochromatosis. She is married to fellow biologist Bernard Mathey-Prevot.