The Gallianates were a Gallic tribe living in the region of modern Cantù (Lombardy), south of Lake Como, during the Roman era.
They are mentioned in a Roman altar dedicated to the Matronis Braecorium Gallianatium.
The ethnic name Gallianates is based on the Celtic stem galli-, which also underlies also ethnonyms such as Gallitae.
The district of Galliano in Cantù is named after the tribe.
The Gallianates lived in the area of Galliano, a district of Cantù, between Como and Milan.