The Keswick to Barrow (K2B) Walk is a sponsored walking event in the English Lake District.

The K2B route starts next to the car park at Legburthwaite Keswick, proceeds down the banks of Thirlmere at the foot of Helvellyn, winds up and over Dunmail Raise, and continues down through the villages of Grasmere and Elterwater. Through The Langdales & Coniston village, reaching the head of Coniston Water, where the quiet east bank of the lake is followed. Then continues through the village of Nibthwaite before arriving in Lowick. The most challenging section is the progressive ascent up Kirkby Moor to the highest point of the route. Then it descends through the village of Marton and on via Dalton-in-Furness to the finish at Hawcoat Park Sports Club on the outskirts of Barrow-in-Furness.