The Bonnington Chemical Works was a pioneer coal tar processing plant established in Edinburgh. It was probably the first successful independent facility established for the integrated treatment of gasworks waste, and manufactured the residues of the Edinburgh gasworks into useful products for over half a century.

Gas lighting was introduced in Edinburgh in 1818. The production of coal gas generated considerable residues of coal tar and ammoniacal liquor which were further processed at the Bonnington Chemical Works. The Bonnington facility was located on Newhaven Road in Bonnington (between Edinburgh and Leith) near the south bank of the Water of Leith.