Monte Cimino, Mountain peak in Lazio, Italy

Monte Cimino is a 1053-metre mountain, the highest peak of the Cimini range and of the province of Viterbo, rising above Soriano nel Cimino. Its broad, rounded summit ridge is covered by dense forest, including a 58-hectare old-growth beech wood between 925 and 1053 metres. A tower with antennas stands on the top.

The summit was occupied by a large Late Bronze Age village whose perimeter wall, built around 1150 BC, enclosed about 50,000 square metres; a smaller fortified area of some 5,000 square metres lay near the modern tower. Archaeologists identified the enclosure around 1890, but systematic excavation began only in 1976, and since 2009 Sapienza University of Rome and the Ministry of Cultural Heritage have run summer digs there. Two Etruscan reoccupation phases followed, an archaic fortification of about the 6th century BC and a later one linked to Rome's wars against the Etruscans in the 4th century BC.

The mountain's name likely comes from the Cimini people, and Virgil mentions it in the Aeneid. Roman writers called the dense forest Silva Ciminia, a sacred and forbidding place; remains of small temples probably dedicated to Jupiter Ciminus have been found in the Cimini mountains.

The summit can be reached on foot via three hiking trails built by the CAI Viterbo section. A car park on the SP 62 "Faggeta" road at 970 m gives access to the beech wood, with a restaurant nearby. A weather station active since 2011 and restored in 2018 stands on the mountain. The tower on the summit houses antennas and is not open to visitors.

The summit holds the remains of a Late Bronze Age wall enclosing about 50,000 square metres, identified by archaeologists around 1890 but only excavated from 1976. A smaller fortified area of roughly 5,000 square metres lies near the modern tower, now carrying antennas and transmitters and closed to visitors.