Cirillo

Cirillo is a surname of Italian origin. It is derived from the given name "Cirillo," which is the Italian form of "Cyril." Cyril comes from the Greek name "Kyrillos" (Κύριλλος), which is derived from "kyrios" (κύριος) meaning "lord."

The surname Cirillo, like other surnames originating from given names, was likely adopted to distinguish individuals with the same given name within a community. The name may have been given to the son or descendant of someone named Cirillo (Cyril).

Variations of the surname exist, including Cirilli, Cirilla, and Cirilletti. These variations often reflect regional dialectal differences in Italy.

The surname Cirillo is found primarily in Southern Italy.