Mordecai Marceli Roshwald (May 26, 1921 – March 19, 2015) was an American academic and writer.

Born in Drohobycz, Second Polish Republic (now Ukraine) to Jewish parents, Roshwald later made aliyah to the State of Israel.

He is also the author of A Small Armageddon (1962) and Dreams and Nightmares: Science and Technology in Myth and Fiction (2008).

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