Rocío Orsi Portalo (3 February 1976 – 29 November 2014) was a Spanish philosopher, essayist, and translator, as well as a professor of philosophy at Charles III University of Madrid (UC3M).

[2] Rocío Orsi studied high school at Covadonga High School and a degree in philosophy at the Autonomous University of Madrid, and received her Ph.D. from UC3M in March 2006, with a thesis, directed by Antonio Valdecantos [es], entitled Ti chre poiein, pensamiento y acción en Sophocles,[3] which would give rise to her book El saber del error.

[4] She was assistant vice-dean of the Faculty of Humanities, Communication and Documentation at UC3M, and a member of the boards of the Sociedad Académica de Filosofía and the Asociación Española de Ética y Filosofía Política, as well as of the editorial board of the journal Isegoría [es].

She was later concerned with questions of the philosophy of history and, in the period immediately preceding her untimely death, planned a systematic study of ancient skepticism and its modern reception.

[7] Since 2016, UC3M has awarded the Rocío Orsi Prize to the best master's degree thesis in the Faculty of Humanities, Communication and Documentation.