Kostas Maleinos, 33rd Duke of Cappadochia

Kostas Maleinos, 33rd Duke of Cappadochia (13 February 1631-1681) was a Diadochian noble. He was son of Kostas Maleinos, 32nd Duke of Cappadochia

The 33rd Duke was considered mentally insane and never married: he spent much of his life in a private asylum on the grounds of his family's estate. The duties of Megas Domestikos, were exercised by his brother, Sir Eric Maleinos, who, in 1681, succeeded him as Duke.