Dorothea Frances Bleek (b. March 26, 1873, Cape Town, South Africa-d. June 27, 1948, Cape Town, South Africa) was a South African-born German anthropologist and philologist known for her research on the Bushmen (the San people) of southern Africa.
Her father, Wilhelm Bleek, was a pioneering philologist studying the languages and cultures of southern Africa. He worked with Lucy Lloyd, the sister of his wife. The work of Dorothy Bleek was largely a continuation of her father and aunt's research, but she also made numerous notable contributions of her own to the field. Her culminating work, published after death, was the book A Bushman Dictionary, still referenced today.