Leonzo is a very rare boys' name that peaked in 2019 and has grown less common since.
Leonzo is a boy name. In 2025 it ranked #11,458 for boy births in the United States (and #23,606 across all names), given to 6 babies. Leonzo first appears in 1965 and peaked in 2019 (7 births).
Boys named Leonzo per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 1965–2025 · U.S.+territories from SSA territory files (1998–2025)