Alonzo
How to say it: uh-LON-zoh · /əˈlɑnzoʊ/
Spanish form of Alphonso, from Germanic Adalfuns meaning 'noble and ready/eager'; long established in Iberian and Latin American cultures.
Alonzo was the 363rd most popular boys’ name in the United States in 2025, given to 590 babies (Social Security Administration). Its busiest decade was the 1880s, its births are steady over ten years, and it is projected to slip to #368 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #363 |
|---|---|
| Babies born in 2025 | 590 |
| Share of births | 1 in 3,627 |
| Peak decade | 1880s |
| Change over 10 years | +4% |
| Projected rank for 2030 (estimate) | #368 |
| In France, 2025 | #813 among boys’ names, 25 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Alonzo crested in the 1880s and has held on since. It stands well below that high and looks likely to ease lower.
What goes with it
Spoken uh LON zoh, the sound stays soft and breathy with a strong edge. Santiago shares its rhythm and warmth.
Parents who love Alonzo also love
Nicknames
- Al
- Lon
- Lonzo
Honouring a Alonzo in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Alonzo is about 1 in 152.
Around the world
This spelling is used in English, French, German, Spanish.
In France: #813 for boys in 2025.
Famous people named Alonzo
- Alonzo Mourning (born 1970)American basketball player
- Alonzo Church (1903–1995)American mathematician and logician
- Alonzo Babers (born 1961)American athletics competitor
From Wikidata and Wikipedia
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