The Jiménez dynasty, alternatively called the Jimena, the Sancha, the Banu Sancho, the Abarca or the Banu Abarca, was a medieval ruling family which, beginning in the 9th century, eventually grew to control the royal houses of several kingdoms on the Iberian Peninsula during the 11th and 12th centuries, namely the Kingdoms of Navarre, Aragon, Castile, León and Galicia as well as of other territories in the South of France. The family played a major role in the Reconquista, expanding the territory under the direct control of the Christian states as well as subjecting neighboring Muslim taifas to vassalage. Each of the Jiménez royal lines ultimately went extinct in the male line in the 12th or 13th century.

A dynasty is a sequence of rulers from the same family, usually in the context of a monarchical system, but sometimes also appearing in republics. A dynasty may also be referred to as a "house", "family" or "clan", among others.