Castelgrande is one of the the three castles in Bellinzona, Switzerland.
The site of the Castelgrande has been fortified since at least the late 1st Century BC and until the 13th Century it was the only fortification in Bellinzona. The walls that separate the three baileys all radiate from the 14th Century Terre Nera, which is located in the center of the castle.
To the east is a complex of buildings which were part of the old keep in the castle. In the center of the keep is the tallest tower of the Castelgrande, the Torre Bianca or White Tower, which dates from the 13th Century.