San Leonardo de Yagüe is a Spanish town and municipality located in the Province of Soria, part of the autonomous community of Castile and León. It is one of the most populated municipalities of the Sorian county of "Pinares".
It has primary and secondary schools (I.E.S. "San Leonardo"), attended by students from surrounding municipalities (Navaleno, Hontoria del Pinar, Casarejos, Espeja, Espejón, La Hinojosa, and others).
The town, which has about 2,500 inhabitants, is home to the Puertas Norma timber products factory, a manufacturer of doors and pre-hung door units. The factory employs about 700 workers.
The foundation date of the village is unknown, but it is supposed to be in the 10th or 11th century. The oldest document where the village is mentioned is from 1173, in a privilege card given by Alfonso VIII.
After Juan Yagüe's death, the village changed its name to San Leonardo de Yagüe.