This Catalog of Ancestral Potato Varieties from the district of Chugay, province of Sánchez Carrión, in the region of La Libertad, shows the genetic diversity of the potato landraces that the farmers conserve in their fields, and the knowledge that this implies regarding their preservation and maintenance; and while it bears witness to a vast ancestral culture, at the same time it makes a valuable contribution to scientifi c knowledge. This catalog can be used in diff erent ways: as a baseline inventory to monitor the conservation status of the varieties in years to come; as a guide for studying new attributes of these varieties –for example in the area of cuisine– and a source of potential varieties to be promoted for the generation of income and better options for coping with food insecurity. Este catálogo de variedades de papa nativa del distrito de Chugay, provincia de Sánchez Carrión, región La Libertad, constituye una muestra de la diversidad genética de las papas nativas que los
