Alonso
How to say it: uh-LON-soh · /əˈlɑnsoʊ/
Spanish form of Alfonso, from Visigothic Ildefonsus meaning 'noble and ready' (adal = noble, funs = ready).
Alonso was the 363rd most popular boys’ name in the United States in 2025, given to 324 babies (Social Security Administration). The 2020s are its busiest decade so far, 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 | 324 |
| Share of births | 1 in 3,627 |
| Peak decade | 2020s |
| Change over 10 years | +4% |
| Projected rank for 2030 (estimate) | #368 |
| In France, 2025 | #813 among boys’ names, 10 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
After steady gains, Alonso reached its highest point in the 2020s. It remains at the top for now though a slight dip looks probable ahead.
What goes with it
Spoken in three rolling syllables, Alonso feels soft and airy with a strong undertone. Alvaro and Lorenzo sit nicely alongside it.
Parents who love Alonso also love
Nicknames
- Lon
- Al
- Alo
- Lonzo
Honouring a Alonso in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Alonso 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 Alonso
- Alonso de Ojeda (1466–1515)Spanish navigator and governor
- Alonso Cano (1601–1667)Spanish painter, architect and sculptor
- Alonso de Ercilla (1533–1595)Spanish soldier and poet
From Wikidata and Wikipedia
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