Janusz Lewandowski ( March 10, 1931, Warsaw–August 13, 2013) was a Polish diplomat, known for arranging the Operation Marigold, a failed secret attempt to reach a compromise solution to the Vietnam War. In 1955 he graduated from Taras Shevchenko National University of Kyiv, then Ukrainian SSR and afterwards held various positions at the Polish foreign ministry. At the time when he started arranging the Vietnam talks, officially he was a representative at the International Control Commission set up to monitor the ceasefire in the divided Vietnam.