Susan Elizabeth Wood Crocker (January 6, 1836 – 1922) was an American physician and professor. After graduating from the Woman's Medical College of the New York Infirmary, in 1874, she began pioneer work as woman physician. She one of the founders of the Lawrence General Hospital, its first physician, and the medical and surgical supervisor of all its departments. She also directed the establishment of Lawrence, Massachusetts's first free home for infirm.