Holding steady, #4,139 for boys today.
Popularity of Lonzo since 1880
Babies named Lonzo per year in U.S. Social Security records. Raw births topped out in 1919, but relative to how few babies were recorded back then, Lonzo's real moment was 1903.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1880s | 128 |
| 1890s | 114 |
| 1900s | 181 |
| 1910s | 482 |
| 1920s | 659 |
| 1930s | 455 |
| 1940s | 449 |
| 1950s | 447 |
| 1960s | 260 |
| 1970s | 220 |
| 1980s | 162 |
| 1990s | 94 |
| 2000s | 83 |
| 2010s | 95 |
| 2020s | 132 |
Meaning & origin
Lonzo is a rare masculine name with Italian and Spanish roots. In 2025 it ranked 4,139th in the United States, a little lower than its peak year of 1903. Fewer than 1 in 68,323 boys received the name that year. Its trajectory has been stable, meaning it has maintained a low but consistent level of use. The name was most common in Arizona during the 1900s decade. Lonzo likely began as a nickname for Alonzo or Lorenzo before becoming a given name in its own right. Parents today may choose it for its vintage feel or as a distinctive alternative to more common Italian-inspired names.
Lonzo is widely considered a short form or variant of Alonzo, which itself derives from the Italian and Spanish name Alfonso, ultimately from Germanic roots meaning 'noble and ready.' It may also be a clipping of Lorenzo, the Italian form of Laurence. The name appeared in the United States in the late 19th century, with its peak popularity occurring in the early 1900s. It has remained relatively rare since then.
Where Lonzo is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
“Lonzo” around the world
Where Lonzo lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
5
babies in 2024
Sources: INSEE (France).
Nicknames & variants
Nicknames: Zo, Lon
Sibling names for Lonzo
Names that share Lonzo's style, for a brother or sister.
