Sibilla Aleramo (born Marta Felicina Faccio; 14 August 1876 – 13 January 1960) was an Italian feminist writer and poet known for her autobiographical depictions of life as a woman in late 19th century Italy.

While employed in the same factory where her father worked, she was raped in an empty office room by Ulderico Pierangeli, a co-worker ten years her senior, when she was only 15.

After a brief relationship with a young artist, Felice Damiani, she lived together for some years with Giovanni Cena, a writer and journalist, who encouraged her to turn her life story into a fictionalized memoir (and to take on the pseudonym of Sibilla Aleramo).

She also became active in political and artistic circles, especially Futurism, and engaged in volunteer work in the Ager Romanus, the poverty-stricken countryside surrounding Rome.

The two women started a relationship, later recounted in the novel Il passaggio (The Crossing, 1919), a book in which Aleramo also modified some of the events told in Una donna, arguing that Giovanni Cena had originally convinced her to slightly change her story.

Aleramo's life is mostly significant for her trail-blazing trajectory as an independent woman and artist, and as an individual who lived through different ages (Liberal Italy, Fascism, Post-World War II, the advent of the Italian Republic) while always maintaining cultural and political visibility.