Stoppani is an Italian surname. Notable people with the surname include:
Antonio Stoppani (1824–1891) – Italian Catholic priest, patriot, geologist and palaeontologist Giovanni Francesco Stoppani (1695–1774), Italian cardinal and diplomat Mario Stoppani (1895–1959) – Italian World War I flying ace
See also Stoppani Glacier, valley glacier located in Alberto de Agostini National Park, Isla Grande de Tierra del Fuego