Stroop is a Dutch surname. Notable people with the name include: John Ridley Stroop (1897–1973), American psychologist, after whom the Stroop effect was named Jürgen Stroop (1895–1952), German SS commander responsible for the liquidation of the Warsaw Ghetto; executed for war crimes Paul D. Stroop (1904–1995), officer of the United States Navy and a naval aviator See also Stroup (disambiguation) Dutch-language surnames