Bernacchi is a surname, and may refer to:
Antonio Maria Bernacchi (1685–1756), Italian castrato singer Brook Bernacchi (1922–1996), Hong Kong lawyer and politician (1910–2006), Italian actress and dubber Leonardo Mario Bernacchi (1935–2012), Roman Catholic titular bishop of Tabaicara Louis Bernacchi (1876–1942), physicist, astronomer and explorer Michael Bernacchi (1911–1983), British colonial administrator Mike Bernacchi (born 1965), United States Navy rear admiral , Italian journalist and presenter Quirico Bernacchi (1914–2006), Italian cyclist