Karl August Wittfogel (6 September 1896, in Woltersdorf, Germany – 25 May 1988, in New York, USA) was a German-American playwright, historian, and sinologist. Originally a Marxist and an active member of the Communist Party of Germany, after the Second World War Wittfogel was an equally fierce Anticommunist.

Starting from a Marxist analysis of the ideas of Max Weber on China and India's "hydraulic-bureaucratic official-state" and building on Marx's sceptical view of the Asiatic Mode of Production, Wittfogel came up with an analysis of Oriental despotism which emphasized the role of irrigation works, the bureaucratic structures needed to maintain them and the impact that these had on society, coining the term "hydraulic empire" to describe the system. In his view, many societies, mainly in Asia, relied heavily on the building of large-scale irrigation works. To do this, the state had to organize forced labor from the population at large. As only a centralized administration could organize the building and maintenance of large-scale systems of irrigation, the need for such systems made bureaucratic despotism inevitable in Oriental lands. This structure was uniquely placed to also crush civil society and any other force capable of mobilizing against the state. Such a state would inevitably be despotic, powerful, stable and wealthy. Wittfogel's anticommunism led in "Oriental Despotism" to extend the hydraulic hypothesis to Russia, where it hardly is applicable.