Michael Dov Weissmandl (25 October 1903 – 29 November 1957) was an Orthodox rabbi who became known for his efforts to save the Jews of Slovakia from extermination at the hands of the Nazis during the Holocaust. He was one of the leaders of the Bratislava Working Group, an underground organization that attempted to save Slovak Jews and other European Jews from deportation to death camps. He originated the proposal via Rabbi Solomon Schonfeld in London to bomb the rails leading to Auschwitz, but this, along with subsequent suggestions from others, was ultimately not implemented.