Janusz Andrzej Zajdel (15 August 1938 – 19 July 1985) was a Polish science fiction author, second in popularity in Poland to Stanisław Lem. His major genres were social science fiction and dystopia. His main recurring theme involved the gloomy prospects for a space environment into which mankind carried totalitarian ideas and habits: Red Space Republics, or Space Labor Camps, or both. His heroes desperately try to find meaning in the world around them. His works include five social-science fiction novels: Cylinder van Troffa (Van Troff's Cylinder, 1980); Limes inferior (The Lower Limit, 1982); Cała prawda o planecie Ksi (The Whole Truth about Planet Xi, 1983); Wyjście z cienia (Coming out of the Shadow, 1983); and Paradyzja (Paradise: World in Orbit, 1984). The Polish science fiction fandom award was named after him: the Janusz A. Zajdel Award. He was a trustee of World SF.