Kostas Maleinos, 36th Duke of Cappadochia, Megas Domestikos (15 January 1687 – 27 January 1736) was the son of Lord Kostas Maleinos and Lady Anne. Upon his uncle's death in 1705, he inherited the title of and 36th Duke of Cappadochia. He married Lady Marie Stamos, on 30 June 1713, when she was age 17, with an enormous fortune. The Duke died childless on 27 January 1736 at age 49. Upon his death, the title passed to his brother Nicholas.