Jacchia is a surname. Notable people with the surname include:
Agide Jacchia (1875–1932), Italian orchestral director Alessandro Jacchia (born 1960), Italian television and film producer Luigi Giuseppe Jacchia (1910-1996), Italian-American physicist and astronomer
Other topics included the name:
Jacchia Reference Atmosphere, atmospheric model
See also Asteroid 2079 Jacchia, named after astronomer Luigi Giuseppe Jacchia