León Pacheco Solano (May 9, 1898, in Tres Ríos, Cartago – July 26, 1980, in San José) was a Costa Rican writer and journalist who belonged to the so-called "Generación de los 40."
While studying in La Sorbona, he came into contact with Miguel Ángel Asturias, Arturo Uslar Pietri, and Alfonso Reyes.
He worked as an opinion and literary journalist, collaborating for newspapers and magazines such as Buenos Aires' La Razón, Caracas' El Universal, Bogotá's El Tiempo, México's Novedades, Madrid's ABC, Paris' Revue de L’Amérique Latine, and the Repertorio Americano.
Even though he wrote a novel for the "generación del 40" (Los pantanos de infierno, which was about the banana strike of 1934), his main interest as a writer was in essay writing.
From his studies of the French Culture he wrote Once maestros franceses (1936) and El hilo de Ariadna (1965).