Mary Lee Mills (August 1912 – February 2, 2010) was an American nurse. Born into a family of eleven children, she attended the Lincoln Hospital School of Nursing and graduated in a nursing degree and became a registered nurse. After working as a midwife, she joined the United States Public Health Service (USPHS) in 1946 and served as their chief nursing officer of Liberia, working to hold some of their first campaigns in public health education. Mills later worked in Lebanon and established the country's first nursing school, and helped to combat treatable diseases. She was later assigned to South Vietnam, Cambodia and Chad to provide medical education.