John Sidney Hawkins (baptised 11 February 1758 – 12 August 1842) was an English antiquarian.
He died on 12 August 1842, aged 84, at Lower Grove, Brompton, London, where he had long resided.
He was described in the Gentleman's Magazine's obituary as a learned antiquary, whose "talents were overshadowed by a sour and jealous temper," and who in later life was in retirement.
[1][2] An early work comprised essays on plates from subjects in Westminster Abbey, published in 1782–3 in John Carter's Antient Sculpture and Painting.
On the discovery of paintings on the walls of the old House of Commons in 1800, Hawkins set out to write an account of them, to accompany the drawings made by John Thomas Smith; but Smith completed and published the work himself in 1807 as Antiquities of Westminster.