Alfonso Boy
How popular is Alfonso?
#1,012 boy name in 2025
223 baby boys were named Alfonso in the US in 2025, making it the 1012th most popular boy name.
Alfonso popularity over time
Boys Girls
| Rank in 2025 | #1,012 for boys (▼ 90 from 2024) |
|---|---|
| Babies in 2025 | 223 boys |
| 10-year trend | Falling (-24% babies vs 2015) |
| Earlier ranks | #796 in 2015, #1,007 in 2020 |
| Peak year | 1991 (574 boys) |
| Highest rank | #294 in 1929 |
| First recorded | 1881 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.2% in a class of 25 kids born in 2025 |
Alfonso counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Alfonso family of names ranked #828 for boys in 2025 (#782 the year before), with 271 babies in all.
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Alfonso is most popular
Babies named Alfonso per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Arizona: 0.4 per 1,000 (64 boys)
- California: 0.3 per 1,000 (317 boys)
- Texas: 0.3 per 1,000 (286 boys)
- Illinois: 0.2 per 1,000 (57 boys)
- New Mexico: 0.2 per 1,000 (6 boys)
Alfonso by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 43 | #644 |
| 1890s | 108 | #473 |
| 1900s | 338 | #302 |
| 1910s | 1,649 | #318 |
| 1920s | 3,294 | #294 |
| 1930s | 2,986 | #295 |
| 1940s | 2,987 | #345 |
| 1950s | 3,819 | #348 |
| 1960s | 3,775 | #385 |
| 1970s | 4,115 | #369 |
| 1980s | 4,537 | #375 |
| 1990s | 5,201 | #395 |
| 2000s | 4,508 | #490 |
| 2010s | 2,680 | #746 |
| 2020s | 1,424 | #871 |
Boy names about as popular as Alfonso
Questions
- Is Alfonso a boy or girl name?
- Alfonso is mostly a boy name. Over the last 10 years, 100% of babies named Alfonso were boys.
- How popular is the name Alfonso?
- 223 baby boys were named Alfonso in the US in 2025, making it the 1012th most popular boy name.
- When was Alfonso most popular?
- Alfonso peaked in 1991, when 574 boys were given the name. Its highest rank was #294 in 1929.
- How many people are named Alfonso?
- 41,579 babies have been named Alfonso in the US since 1880. We estimate about 29,438 of them are alive in 2026, with a median age of 39.
- Where is Alfonso most popular?
- From 2021 to 2025, Alfonso was most common in Arizona, at 0.4 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.