Peggy Sastre (born 1981) is a French science journalist, translator, blogger and essayist.

She is a Doctor of Philosophy[1] who worked on Nietzsche and Darwin.

She forms the concept of “evofeminism”, offering a biological and evolutionary reading of sexual and gender issues.

[2] Sastre was one of the authors along with Abnousse Shalmani of the open letter criticising #MeToo sent to the leading French newspaper, Le Monde, signed by over 100 high-profile French women.

The letter advocated in part that a "freedom to bother" — a man's right to make a pass at a woman, even if a clumsy one — was "indispensable to sexual freedom".