Ernst Linder (25 April 1868 – 14 September 1943) was a Swedish general of Finnish descent who served in the Swedish army from 1887 to 1918, after which be participated in the Finnish Civil War as the commander of the Satakunta and Savo army groups, whose responsibility stretched from Finland's western coast adjoining the Gulf of Bothnia to Näsijärvi. Linder was a friend of the White Commander, Marshal C.G.E. Mannerheim.