Juan de Espinosa Medrano (Calcauso?, 1630? – Cuzco, 1688), known in history as Lunarejo (or "The Spotty-Faced"), was an Indigenous cleric, sacred preacher, writer, playwright, theologian and polymath from the Viceroyalty of Peru. He is the most prominent figure of the Literary Baroque of Peru and one of the most important intellectuals from Colonial Spanish America (along with the New Spain writers Sor Juana Inés de la Cruz and Carlos de Sigüenza y Góngora).