List of Famous people with last name Sempill

Robert Sempill, 3rd Lord Sempill was a Scottish lord of Parliament.

William Francis Forbes-Sempill, 19th Lord Sempill, AFC, AFRAeS, was a Scottish peer and record-breaking air pioneer who was later shown to have passed secret information to the Imperial Japanese military before the Second World War. Educated at Eton, he began his career as a pilot in the Royal Flying Corps and then served in the Royal Naval Air Service and Royal Air Force during the First World War. In 1921, Sempill led an official military mission to Japan that showcased the latest British aircraft. In subsequent years he continued to aid the Imperial Japanese Navy in developing its Navy Air Service.

William Forbes-Sempill, 17th Lord Sempill, born William Forbes, was a Scottish peer, the 17th Lord Sempill and 8th Baronet of Craigievar.

Robert Sempill, 4th Lord Sempill, (d.1611), Scottish Lord of Parliament.

William Sempill, 2nd Lord Sempill was a Scottish lord and Sheriff of Renfrewshire.