Peter Bicknell (16 June 1907 – 31 May 1995) was a British architect, author, exhibition curator and mountaineer. He practised as an architect in Cambridge with H. C. Hughes as Hughes and Bicknell, including commissions for the University of Cambridge and its colleges, notably Fen Court at Peterhouse (1939) and an extension to the Scott Polar Research Institute (1968), as well as commercial buildings and private houses. His designs were predominantly Modernist in style. He lectured in architecture and art history at the Cambridge School of Architecture, and was a fellow of Downing College.
In the 1980s, after retiring from his architectural practice, Bicknell curated art history exhibitions at the Fitzwilliam Museum in Cambridge and elsewhere. As a mountaineer, he is remembered for his 1932 traverse of the Cuillin Ridge on Skye in just over 8 hours. His books include British Hills and Mountains (1947) and Picturesque Scenery of the Lake District 1752–1855 (1990).