Osbert Guy Stanhope Crawford CBE FBA FSA (28 October 1886 – 28 November 1957) was a British archaeologist who specialised in the archaeology of prehistoric Britain and Sudan. A keen proponent of aerial archaeology, he spent most of his career as the archaeological officer of the Ordnance Survey (OS) and also wrote a range of books on archaeological subjects.
Born in Bombay, British India, to a wealthy middle-class Scottish family, Crawford moved to England as an infant and was raised by his aunts in London and Hampshire. He studied geography at Keble College, Oxford, and worked briefly in that field before devoting himself professionally to archaeology. Employed by the philanthropist Henry Wellcome, Crawford oversaw the excavation of Abu Geili in Sudan before returning to England shortly before the First World War. During the conflict he served in both the London Scottish Regiment and the Royal Flying Corps, where he was involved in ground and aerial reconnaissance along the Western Front. After an injury forced a period of convalescence in England, he returned to the Western Front, where he was captured by the German Army in 1918 and held as a prisoner of war until the end of the conflict.