George John Pinwell RWS (London 26 December 1842 - 8 September 1875 London), was a British illustrator and watercolourist.
Pinwell was born on 26 December 1842 at 12 Great Mays Buildings, London. He was baptised on 27 July 1845, at St. Mark's, Surbiton, south-west London, along with his younger brother Henry (born c. 1845).
His parents were John Pinwell, a carpenter or builder, and his wife, Mary Ann Baker.
Pinwell's father was thought to have been involved in building the original Surbiton railway station in south-west London.
His mother was "a rough, illiterate woman", and "a rough and determined person".