The gens Valeria was a patrician family at ancient Rome, prominent from the very beginning of the Republic to the latest period of the Empire. Publius Valerius Poplicola was one of the consuls in 509 BC, the year that saw the overthrow of the Tarquins, and the members of his family were among the most celebrated statesmen and generals at the beginning of the Republic. Over the next ten centuries, few gentes produced as many distinguished men, and at every period the name of Valerius was constantly to be found in the lists of annual magistrates, and held in the highest honour. Several of the emperors claimed descent from the Valerii, whose name they bore as part of their official nomenclature.

The patricians were originally a group of ruling class families in ancient Rome. The distinction was highly significant in the Roman Kingdom and the early Republic, but its relevance waned after the Conflict of the Orders. By the time of the late Republic and Empire, membership in the patriciate was of only nominal significance. The social structure of ancient Rome revolved around the distinction between the patricians and the plebeians. The status of patricians gave them more political power than the plebeians, but the relationship between the groups eventually caused the Conflict of the Orders. This time period resulted in changing of the social structure of ancient Rome.