Carlos Fernández Liria (born 1959) is a Spanish philosopher and lecturer at the Complutense University of Madrid (UCM).

[1] Fernández Liria, who started his teaching experience as professor of secondary education,[2] also worked as TV writer alongside fellow philosopher Santiago Alba in the 1980s, developing the scripts for the cult children's show La Bola de Cristal.

[3] Following the earning of a PhD in philosophy at the UCM,[4] reading a dissertation about Jean-Paul Sartre in 1987 titled Una ontología positiva.

Ensayo a partir de “El ser y la nada” de Sartre supervised by Sergio Rábade Romeo[5] (initiated under the supervision of Gabriel Albiac),[6] he became a senior lecturer at the former university in 1989.

[9] An admirer of Julio Anguita, he lent support to Podemos in the beginnings of the party;[1] the purpose of his work En defensa del populismo, in which he outlines a reinterpretation of the Enlightenment and Rousseau, has been described as essentially an apology of the party.