Seathwaite is a small hamlet in Borrowdale valley in the Lake District of Cumbria, North West England. It is located 13 kilometres (8 mi) southwest of Keswick at the end of a minor road that heads southwest from the hamlet of Seatoller, which is where the B5289 road begins its steep climb up the pass to Honister Hause on the boundary between Borrowdale civil parish and Buttermere civil parish.