Portinscale is a village in Cumbria, England, close to the western shore of Derwentwater in the Lake District National Park 1+1⁄2 miles (2.5 kilometres) from Keswick.

[5] The antiquary W. G. Collingwood, commenting on an archaeological find at Portinscale, wrote that it showed that "Stone Age man was fairly at home in the Lake District".

[6] The remains of the workshop of a prehistoric tool-maker were discovered in 1901 by workmen digging out a fish-pond near the village, about 150 yards (140 metres) from the north-west shore of Derwentwater.

[8] From medieval times until the twentieth century, according to records at Carlisle Castle, a Court leet met periodically and appointed constables for Portinscale.

[17] The village has one pub, the Farmer's Arms;[18] a restaurant, the Chalet;[19] a café, the Dandelion;[20] the Derwent Water Marina;[21] numerous bed-and-breakfast establishments;[22] and a substantial and long-established hotel, the Derwentwater, originally called the Black Dog, and then from about 1815 the Marshal Blücher.

It has been owned by Sunderland City Council since 1962, and is a residential centre offering courses for children and young people, leadership and management training, conference facilities and group accommodation.