Moshe Marzouk (Hebrew: משה מרזוק; or Musa Lieto Marzuk, Arabic: موسى ليتو مرزوق; born 20 December 1926 – 31 January 1955) was an Egyptian Karaite Jew, hanged by Egypt in 1955 for plotting terrorist attacks in Cairo known as Operation Suzannah.
Marzouk was born in Cairo to a Karaite family who had immigrated from Tunisia in the early 20th century, though they retained French citizenship. While working as a surgeon at the Jewish Hospital in Cairo in the early 1950s, he was recruited as a spy by Israeli military intelligence, along with nearly a dozen other young Egyptian Jews.
In 1954 the group carried out a series of bombings in Egypt; the post office in Alexandria, and two American libraries in Cairo and Alexandria, and a British movie theatre — as part of Operation Suzannah, which triggered political internal crisis known as the Lavon Affair. The group was caught and tried, during which time they were tortured. Marzouk publicly took responsibility for the group and everything that they had done, and was one of two group members who were hanged in a Cairo prison. Two others committed suicide after 5 months of torture, and the rest were jailed for 14 years before being deported to Israel in 1968.