Florence Pat Haseltine (born 1942) is a U.S. physician, biophysicist, reproductive endocrinologist, journal editor, novelist, inventor, and advocate for women's health. She has been diagnosed with dyslexia. She built a diverse career in medicine. An associate professor at Yale University, her work specializes in obstetrics and gynecology as well as women's rights and gender bias in medicine. While at Yale, Haseltine established the embryology laboratory, which was one of the early labs to have a successful IVF baby. The Microscope used in the laboratory is now in Historical Collections of the National Museum of Health and Medicine (Catalog number is M- 030.10091).