Cono is of Italian origin, derived from the Latin 'Constantius', meaning 'constant' or 'steadfast'. It is less common than its variant forms such as Connie or Conrad. In Italy, Cono is often used as a nickname for longer names like Costantino or Costanzo.
The name Cono experienced its peak popularity between 1916 and 1925 with the highest years being 1916 (11 births), 1920 (14 births), and 1923 (11 births). After 1925, the number of annual births steadily declined, with only five occurrences between 1927 and 1971. Overall, there were a total of 146 births named Cono over this period.