Kolsass is a municipality in the district of Innsbruck-Land, in the Austrian state of Tyrol. It lies roughly 17 kilometres east of Innsbruck, the state capital.
The settlement was first mentioned in written records around 1050, under the name "Quolesazz" or "Cholsasz". It is one of the older documented places in the Innsbruck-Land district.
Kolsass is administratively a municipality within the Innsbruck-Land district, which surrounds the city of Innsbruck and forms part of the wider Tyrol region.