Pandulf I Ironhead (died March 981) is the Prince of Benevento and Capua from 943 (or 944) until his death.

He is made Duke of Spoleto and Camerino in 967 and succeeds as Prince of Salerno in 977 or 978.

He is an important nobleman in the fight with the Byzantines and Saracens for control of the Mezzogiorno in the centuries after the collapse of Lombard and Carolingian authority on the Italian Peninsula.

He establishes himself over almost the whole of the southern half of Italia before his death in March 981.