George Gregory (16 August 1790 – 25 January 1853) was an English physician.
After his father's death in 1803 he lived with his uncle, Dr James Gregory, in Edinburgh.
In 1813 he was sent as assistant-surgeon to the British forces in the Mediterranean, where he served in Sicily and at the capture of Genoa.
At the end of the Napoleonic Wars he retired on half-pay, and began to practise in London.
He gave lectures on medicine at the Windmill Street School, and later at St Thomas's Hospital.