Sarah Blaffer Hrdy (note: Hrdy is Czech for "proud") is a U.S anthropologist who has made several major contributions to evolutionary psychology and sociobiology.

She has written a number of books, both academic and popular, including:

  • The Woman that Never Evolved (1981)
  • Infanticide: Comparative and Evolutionary Perspectives (1984)
  • Mother Nature: A History of Mothers, Infants and Natural Selection (1999)

Hrdy has joked that her husband married her to "buy her a vowel".