Marengo is an Italian surname. Notable people with the surname include:
Gisella Marengo (born 1975), Italian actress Jakob Marengo (1805–1875), Namibian chief leader in the insurrection against the German Empire Juan Tanca Marengo (1895–1965), Ecuadorian physician Kimon Evan Marengo (1904–1988), Egyptian-born British cartoonist Levi Marengo (born 1987), Dutch footballer Lina Marengo (1911–1987), Italian actress Ludcinio Marengo (born 1991), Dutch footballer Luigi Marengo (1928–2010), Italian painter Manuel Marengo (born 1973), Peruvian footballer Oreste Marengo (1906–1998), Italian Roman Catholic prelate and Salesians missionary in India Ricardo Rodríguez Marengo (born 1998), Argentine professional footballer Rocío Marengo (born 1980), Argentinian model, actress, and dancer Umberto Marengo (born 1992), Italian cyclist
See also Marengo (disambiguation)