Marguerite Borel known as Camille Marbo (French pronunciation: [kamij maʁbo]; 11 April 1883 – 5 February 1969) née Marguerite Appell, was a 20th-century French writer, president and laureate of the Prix Femina in 1913 and president of the Société des gens de lettres.

In 1906, she created La Revue du mois, a scientific and literary journal, with her husband.

Benefiting from her experience as head of the hospital, she created a recruitment centre for women, which auditioned, tested, and employed both salaried employees and volunteers in the services sector.

The treatise she published in 1919, "Mobilization féminine en France", documents the contribution of these women to the Allied victory.

In February 1928, Camille Marbo succeeded Jean Dornis as president of the Denier des veuves de la SGDL, giving assistance to the widows of writers without resources.