Giubiasco is a former municipality in the district of Bellinzona in the canton of Ticino in Switzerland .

On 2 April 2017 the former municipalities of Camorino , Claro, Gnosca , Gorduno , Gudo , Moleno , Monte Carasso , Pianezzo , Preonzo , Sant'Antonio and Sementina merged into the municipality of Bellinzona.

Due to its location at the center of numerous routes through the Alps, Giubiasco has been important since ancient times. The roads over the Monte Ceneri to the south, the Passo di San Jorio from the east, over the San Bernardino Pass and the Gotthard Pass from the north and the route along Lake Maggiore from the west all meet at Giubiasco.

The discovery of the great cemetery of Giubiasco in 1900, led to uncontrolled treasure hunting and the loss of many objects. It was not until 1905 that the Swiss National Museum organized an excavation, which made it possible to save a certain number of graves and document the discoveries scientifically.