The Holy Child of La Guardia is a folk saint in Spanish Roman Catholicism and the subject of a medieval blood libel in the town of La Guardia in the central Spanish province of Toledo.

Dominguito del Val was a legendary child in medieval Spain, allegedly a choirboy ritually murdered by Jews in Zaragoza (Saragossa). Dominguito is the protagonist of the first blood libel in the history of Spain – stories that grew in prominence in the 12th and 13th centuries of the Middle Ages, and contributed to antisemitic incidents. According to the legend, Dominguito was ritually murdered by Jews of Zaragoza.