Gustav Wilhelm Wolff (14 November 1834 – 17 April 1913) was a German-British shipbuilder and politician. Born in Hamburg, he moved to Liverpool in 1849 to live with his uncle, Gustav Christian Schwabe. After serving his apprenticeship in Manchester, Wolff was employed as a draughtsman in Hyde, Greater Manchester, before being employed by the shipbuilder Edward Harland in Belfast as his personal assistant. In 1861, Wolff became a partner at Harland's firm, forming Harland and Wolff. Outside shipbuilding, Wolff served as a Belfast Harbour Commissioner.