The Altemberg is a mountain in the Pennine Alps of north-western Italy; with an elevation of 2,395 m (7,858 ft) is the highest peak of the Alpi Cusiane.

The name of the mountain is connected to the Walser German, a language spoken by people who settled into the upper valley of the Strona and Sesia centuries ago.

Towards SE the ridge goes on with a saddle named Bocchetta delle Vacche and the Cima del Pizzo (2,233 m).

[6] Administratively the mountain belongs to both the comunes of Rimella (West of the summit) and Valstrona.

[10] The ridge between connecting the Altemberg with Cima Lago needs some climbing skill to be crossed and is rated as PD grade [4] Cima Altemberg is part of the regional park of Alta Val Sesia e dell'Alta Val Strona.