(Italian: Lago di Bracciano) is a lake of volcanic origin in the Italian region of Lazio, 32 km (20 mi) northwest of Rome. It is the second largest lake in the region (second only to Lake Bolsena) and one of the major lakes of Italy
. It has a circular perimeter of approximately 32 km (20 mi).
The lake is an important tourist attraction situated near Rome. As it serves as a drinking water reservoir for the city of Rome it has been under control since 1986 in order to avoid pollution of its waters. The use of motorboats is strictly forbidden (exceptions being made for a few professional fisherman and the authorities), and a centralised sewer system has been built for all the bordering towns in order to avoid any spoiling of the water quality. This makes Bracciano one of the cleanest lakes of Italy. The absence of motorized navigation (apart from police boats) favours sailing, canoeing and swimming.
In the last few years the lake and its surroundings have been brought under further protection by the creation of a regional park, the Parco Regionale del complesso lacuale di Bracciano Martignano.