Berthe Bady (1872–1921) was a French actress of Belgian origin.

She was educated at the Convent of the Sacred Heart of Dour, and then enrolled at the Brussels Conservatory in 1891, before joining the Vaudeville Theater in 1894.

She accompanied Lugné-Poe in founding the Théâtre de l'Œuvre (Theatre of the Work).

[3] Fernand Crommelynck dedicated his play, Les Amants puérils (Youthful Lovers) to her.

Louis Aragon evokes her death in Blanche ou l'oubli.