Cécile Wilhelmina Elisabeth Jeanne Petronella de Jong van Beek en Donk (19 May 1866, in Alkmaar – 5 June 1944, in Méréville) was a Dutch feminist writer.

De Jong was born on 19 May 1866 as the daughter of the lawyer Sir Johan Jan François de Jong van Beek en Donk and Anna Cécile Wilhelmine Jeanne Jacqueline Nahuys, as the second of three children.

[1][3] Her earlier divorce had caused a break with her family, and her death in Méréville, France, on 15 June 1944 went mostly unnoticed in her native country, the Netherlands.

Her first published work was "Aan de vrouwen van Nederlandsch Oost-Indië" ("To the women in the Dutch East Indies").

This piece was not given a lot of attention, unlike her next book "Hilda van Suylenburg" (1897) which is when her writing career really took off.

The novel encompasses a story about the first female lawyer (fictional) in the Netherlands, and also touches upon how women can build their own meaningful lives without having to depend on others.

Hilda was a role model for higher class women, because she was able to combine her career as a lawyer with a good marriage and motherhood,[3] and the novel showed how girls can create a meaningful life.

[6] Margaretha Meijboom put her positive response like this: "Now it gave words and forms – powerful and striking!

Author Anna de Savornin Lohman argues that it is bad to exercise free love, because the change in morality would not lead to the liberation of women.