The Cantabrian Wars, sometimes also referred to as the Cantabrian and Asturian Wars, were the final stage of the two-century long Roman conquest of Hispania, in what today are the provinces of Cantabria, Asturias and León in northwestern Spain.

The Roman Republic conquered and occupied territories in the Iberian Peninsula that were previously under the control of native Celtic, Iberian, Celtiberian and Aquitanian tribes and the Carthaginian Empire. The Carthaginian territories in the south and east of the peninsula were conquered in 206 BC during the Second Punic War. Control was gradually extended over most of the Iberian Peninsula without annexations. It was completed after the end of the Roman Republic, by Augustus, the first Roman emperor, who annexed the whole of the peninsula to the Roman Empire in 19 BC.