Actually there is no Roman equivalent of the Greek Mt. Olympus as the legendary home of the twelve great gods just named the Olympians in Greek mythology and simply ‘Dii’ / ‘Di’ ( ‘gods’ ) by the Romans.
In fact the home of the Roman god Jupiter(Latin, “Iuppiter”) which was the Roman counterpart of the Greek Zeus and the supreme god of the Roman pantheon, was exactly the same Mt. Olympus ( in Thessaly , southwest of the city of Thessaloniki in northern Greece) that Greek mythology considered as the home of the Olympians (Zeus, Hera, Aphrodite, Apollo, Ares, Artemis, Athena, Demeter, Dionysos, Hephaistos, Hermes, Poseidon).
Also the Roman equivalent of the gods Zeus, Hera, Aphrodite, Apollo, Ares, Artemis, Athena, Demeter, Dionysos, Hephaistos, Hermes, Poseidon, i.e. respectively Jupiter, Juno, Venus, Apollo, Mars, Diana, Minerva, Ceres, Bacchus, Vulcan, Mercurius, Neptunus, had their home on the Mt.Olympus.