Alonzo
Boy name · German · Greek · Italian · Spanish
Meaningnoble and ready · Spanish form of Alfonso
- US rank
- #511
- Syllables
- 3
- Peak
- #110 in 1881
590 babies were named Alonzo in the US in 2025. It has dropped 34 places in five years.
Save adds it to your list. Vote moves it up the top voted names.
US births per million boys, 1880–2025
Most popular states (2025)
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Alonzo you might not know, from US birth records and Wikipedia. Handy for convincing a partner, or a grandparent.
Famous Alonzo
Alonzo Church
American mathematician and logician (1903–1995)
Choose Alonzo and your child shares a first name with Alonzo Church, an American mathematician and logician. A ready-made answer when someone asks “Alonzo, like who?” Alonzo Church's Wikipedia article is available in 54 languages, a good sign of just how widely known they are.
Read about Alonzo Church on Wikipedia (opens in a new tab)- How commonAbout 1 in every 2,895 baby boys born in the US in 2025 was named Alonzo, 590 babies in all. In a typical school of 500 kids, your Alonzo would very likely be the only one.
- HistoryAlonzo has been in use since at least 1880, the first year US birth records were kept. That's 145 years of Alonzos, and counting.
- Best yearIt was far more popular in 1881, when it ranked #110. Today it's #511, so it could be due a comeback.
- TrendAlonzo has slipped 34 places over the last five years and now sits at #511. Good news if you want a familiar name that fewer kids will share.
- Where it's lovedAlonzo is most popular in California, where it ranks #252, followed by Nevada (#267) and Illinois (#363). It's in the top 1,000 in 27 states.
- MeaningAlonzo is a Spanish form of Alfonso, which means “noble and ready”. Our records link it to German, Greek and Italian roots.
About the name Alonzo
Alonzo is a boy name of German, Greek and Italian origin meaning “noble and ready”. It has 6 letters and 3 syllables, starting with A and ending in “-nzo”. US birth records list Alonzo for boys from 1880 to 2025, in 146 of those 146 years. Its best year was 1881, when it ranked #110 among boy names. In 2025 it ranked #511, with 590 babies.
Origin:German namesGreek namesItalian namesSpanish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1880s | 993 | 1,007 boys |
| 1890s | 768 | 1,301 boys |
| 1900s | 597 | 1,675 boys |
| 1910s | 365 | 2,737 boys |
| 1920s | 271 | 3,691 boys |
| 1930s | 231 | 4,337 boys |
| 1940s | 179 | 5,588 boys |
| 1950s | 196 | 5,097 boys |
| 1960s | 228 | 4,386 boys |
| 1970s | 211 | 4,736 boys |
| 1980s | 196 | 5,113 boys |
| 1990s | 219 | 4,566 boys |
| 2000s | 217 | 4,612 boys |
| 2010s | 280 | 3,571 boys |
| 2020s | 346 | 2,893 boys |
More German boy names
- Boy name: Liam · resolute protector
- Unisex name: Miles · possibly gracious
- Boy name: Axel · father of peace
- Boy name: Leonardo · brave as a lion
- Boy name: Robert · bright fame
- Unisex name: Myles · possibly gracious
- Boy name: Luis · famous warrior
- Unisex name: Charlie · free man
Questions about the name Alonzo
What does the name Alonzo mean?
Alonzo means “noble and ready” in Spanish, as a form of Alfonso.
What is the origin of the name Alonzo?
Alonzo has German, Greek, Italian, Spanish roots in our records. Other German names include Liam, Miles, Axel.
Is Alonzo a boy or girl name?
Alonzo is a boy name.
How popular is the name Alonzo?
Alonzo ranked #511 for US boys in 2025, given to 590 babies. Its best year was 1881 (#110).