Alonzo is a boy name with a modern feel, drawn from real birth records. Below you'll find what Alonzo means and where it comes from, plus how many babies have been named Alonzo across the United States, UK, Ireland and New Zealand, how popular Alonzo has been over the decades, and the year it peaked.
Alonzo is a boy name of Germanic origin meaning “noble and ready”. An Italian and Spanish form of Alphonso.
| Country | Births on record |
|---|---|
| United States since 1880 | 46,109 births |
| England & Wales since 1996 | 141 births |
| Ireland since 1964 | 3 births |
Counts come from official national birth-registration statistics: U.S. Social Security Administration, England & Wales (Office for National Statistics), Scotland (National Records of Scotland), Northern Ireland (NISRA), Ireland (Central Statistics Office) and New Zealand (Dept. of Internal Affairs). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Alonzo per year, United States (1880 to 2025). United States peaked in 2022 (651/yr) · England & Wales peaked in 2023 (17/yr) · Ireland peaked in 2019 (3/yr).
Alonzo has been a fairly common baby name in the United States. It was most common in 2022, when it ranked #962 nationally (given to 662 babies that year).
Alonso · Alanis · Alonza · Alanys · Alanzo · Alenys · Elonzo · Alaniz
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