The Brunnistock is a mountain of the Urner Alps, overlooking the eastern side of the Surenen Pass, in the Swiss canton of Uri.

With a height of 2,952 metres above sea level, the Brunnistock is the highest mountain of the range lying north of the Surenen Pass.

On the north-west side lies a glacier named Blüemlisalpfirn.

The closest locality is Attinghausen on the eastern foot of the mountain.

This article about a mountain, mountain range, or peak located in the canton of Uri is a stub.