Cornelius Fuscus (died 86) was a Roman general who fought campaigns under the Emperors of the Flavian dynasty. During the reign of Domitian, he served as prefect of the imperial bodyguard, known as the Praetorian Guard, from 81 until his death in 86. Prior to this appointment, Fuscus had distinguished himself as one of Vespasian's most ardent supporters during the civil war of 69, known as the Year of the Four Emperors.