A 1880s favorite, climbing again.
Popularity of Alonzo since 1880
Babies named Alonzo per year in U.S. Social Security records. Raw births topped out in 2022, but relative to how few babies were recorded back then, Alonzo's real moment was 1882.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1880s | 1,088 |
| 1890s | 879 |
| 1900s | 808 |
| 1910s | 2,218 |
| 1920s | 2,986 |
| 1930s | 2,434 |
| 1940s | 2,647 |
| 1950s | 3,966 |
| 1960s | 4,395 |
| 1970s | 3,490 |
| 1980s | 3,619 |
| 1990s | 4,262 |
| 2000s | 4,329 |
| 2010s | 5,251 |
| 2020s | 3,583 |
Meaning & origin
Alonzo has a long history of steady use in the United States, first recorded in 1880. It reached its peak popularity early, ranking highest in 1882. After a period of decline, the name has been rising again since 1985, reflecting a broader revival of vintage and Spanish-inflected names. In recent years, Alonzo has been most popular in Nevada, California, and Kansas, where cultural ties to Spanish heritage are strong. With a current rank of 511 in 2025 and an incidence of 1 in 2,895 boys, Alonzo remains a distinctive but familiar choice.
Alonzo is a Spanish and Italian variant of Alfonso, which itself derives from the Visigothic name Adalfuns, composed of elements meaning 'noble' (adal) and 'ready' (funs), often interpreted as 'noble and ready for battle.' The name was borne by several kings of Spain and Portugal, and it has been used in English-speaking countries since at least the 19th century.
Where Alonzo is most popular
Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.
“Alonzo” around the world
Where Alonzo lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
20
babies in 2024
Sources: INSEE (France).
Nicknames & variants
Nicknames: Al, Lon, Lonnie, Zo
Sibling names for Alonzo
Names that share Alonzo's style, for a brother or sister.
Sisters: Eloise, Seraphina, Carmen, Valentina, Lucia, Almira, Izetta, Serita, Almeda, Arvella, Arvilla, Lavenia, Lavonia, Louvenia, Lovella, Luvenia, Adonna, Almedia, Capitola, Claretta, Equilla, Francena, Lethia, Lovenia, Maurita, Palmira, Paralee, Prisilla, Savilla, Sedonia, Venetta, Zelphia, Almadelia, Almyra, Lonetta, Lugenia, Madora, Telitha, Tempie, Yolander, Ailanys, Alzina, Armentha, Armetta, Aurilla, Florenda, Lucindia, Minola, Princetta
Brothers: Lorenzo, Mateo, Javier, Rafael, Santiago, Alonza, Lonzo, Fortino, Alanson, Altonio, Avelino, Chon, Lamoyne, Durante, Elonzo, Zeferino
Names like Alonzo
Names whose popularity has moved with Alonzo's over the last 50 years.
