Monte Tobbio, Mountain summit in Bosio, Province of Alessandria, Italy

Monte Tobbio is a 1,092-metre summit of the Ligurian Apennines in the municipality of Bosio, Province of Alessandria, Piedmont. It is the main peak of the ridge that runs north from Monte delle Figne, dividing the Gorzente and Lemme valleys. Its slopes are rocky and almost barren because of poor soil formed on peridotite bedrock, and since 1979 the mountain has belonged to the Capanne di Marcarolo regional natural park.

The mountain saw combat during World War II in 1944 when Italian resistance fighters battled Nazi and fascist forces on its slopes. This conflict left a lasting mark on the region and remains part of its local memory.

The summit chapel, dedicated to Our Lady of Caravaggio, was built in 1892 and rebuilt after World War II damage; the adjoining room serves as a CAI emergency hut. Every 25 December, CAI groups of the province lead a night walk to the summit starting from the Valico degli Eremiti.

Several hiking trails lead to the summit from nearby towns like Voltaggio and Bosio, with routes varying in difficulty and clarity of markings. Sturdy footwear and plenty of water are essential for the climb, especially in warmer months.

The summit church was built in 1892 and rebuilt after severe damage in World War II; a room next to it serves as an emergency hut owned by the Novi Ligure branch of the Club Alpino Italiano. The mountain's name likely comes from the Germanic word tug, meaning hut.