Sirica was the surname of American federal judge John Sirica (1904-1992).
Sirica also may refer to: Alphonse Sirica, American cancer and bile-duct research scientist Sirica (Kirby), a fictional character, daughter of Garlude, appearing in episode 60 of the Japanese animated television series Kirby: Right Back at Ya!
See also Similar surnames of Italian origin: Sirico Serpico