Cornelius Fuscus (died 86 AD) was a Roman general who fought campaigns under the Emperors of the Flavian dynasty. He first distinguished himself as one of Vespasian's most ardent supporters during the civil war of 69 AD, known as the Year of the Four Emperors. Vespasian's son Domitian employed Fuscus as prefect of the Praetorian Guard, a post he held from 81 until his death.