Josefina Pelliza Pueyrredon de Sagasta (born 4 April 1848, Concordia – d. 18 August 1888, Buenos Aires) was an Argentine poet, journalist, and writer.

She was the daughter of Colonel Jose Maria Pelliza Gomez del Canto y D. Virginia de Pueyrredon (daughter of Juan Martin de Pueyrredon O'Doghan) Pelliza was one of the first women poets in Argentina.

[1] Her best known poems are Pasionarias and Lirios silvestres, and her most popular novellas are Margarita, La Chiriguana, and El César.

She worked as director of La Alborada del Plata magazine,[2] which she used to demand social reform and make criticisms.

She persistently advocated for women's rights,[3] but maintained that women should be valued for their traditional roles in family and society.