Count László Széchenyi de Sárvár-Felsővidék (18 February 1879 – 5 July 1938) was an Austro Hungarian military officer, Imperial Chamberlain, diplomat and venture capitalist. His great-uncle was István Széchenyi. László Széchenyi married Gladys Vanderbilt, the youngest daughter of Alice Claypoole Gwynne and Cornelius Vanderbilt II.