Alfonso

#1,012 in 2025Boys' name

Probably noble and ready

Alfonso has been given to 41,579 babies in the U.S. since 1881. In 2025 it ranked #1,012 of 13,926 boys’ names in use. Its peak year was 1991, with 574 recorded.

Babies named Alfonso, 2025

1 in 14,900

Alfonso over time, 1880–2025

BoysGirls
020040060018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Alfonso: meaning, origin, and history

Probably noble and ready

Spanish and Italian, from Visigothic

About Alfonso

Alfonso is a Spanish and Italian name usually interpreted as “noble and ready.” Its history reaches back to the Visigoths and continues through medieval Iberian kings and modern cinema. The meaning has some uncertainty: early spellings suggest that more than one older name may have contributed to the form now used.

Meaning and medieval roots

Alfonso comes through the Latin form Alphonsus from a Visigothic name commonly explained with elements meaning “noble” and “ready.” The alternative early spelling Adefonsus has led to another proposal, involving an element meaning “battle.” The modern name may preserve the meeting of two or more earlier formations.

The royal history is more definite than that deeper linguistic question. Alfonso was carried by rulers of Asturias, León, Castile, and Aragon, beginning with Alfonso I of Asturias in the eighth century. Repeated use in ruling families gave it a long historical presence in the Iberian Peninsula.

The Spanish variant Alonso is closely related. Portuguese Afonso, French Alphonse, and German Alfons belong to the same family, while Alphonsus preserves its Latin form. Alfonsa and Alfonsina are feminine relatives. These connections explain why the name can appear with or without the central l in different languages.

Alfonso X and medieval song

King Alfonso X is associated with the Cantigas de Santa María, a medieval collection of songs honoring the Virgin Mary. Written in Galician, they tell of her virtues and miracles. Their single-line melodies belong to the musical world of medieval devotion.

The collection connects a royal name with the preservation and cultivation of music and poetry. Its language is also a reminder that the king's cultural world extended across the linguistic traditions of the Iberian Peninsula. Alfonso X's association with the Cantigas is broader than a claim that he personally composed every song.

Alfonso Cuarón and film

Director Alfonso Cuarón brings the name into a very different artistic setting. He won the Academy Award for directing Gravity at the 2014 ceremony. At the 2019 Oscars, Roma brought him another directing award as well as the award for cinematography.

Those distinctions connect his name with both directing a film and shaping its visual images. The two directing wins came for different productions, five ceremonies apart. For contemporary film audiences, Cuarón offers an especially recognizable bearer of a name whose earlier public history was strongly royal.

Pronunciation and everyday forms

In both Spanish and Italian, Alfonso has three syllables, approximately al-FON-soh, with the stress in the middle. The central consonant cluster gives the name a firm point between its open vowels. Al could serve as an informal English shortening, while Alonso offers a related full name with a different shape.

American popularity

In the United States, Alfonso has maintained a smaller but persistent presence. It was recorded for 356 boys in 1950 and 574 in 1991, its highest annual male count in the local SSA series. In 2025, 223 boys received the exact spelling, placing it at #1,012. Its strongest male rank was #294 in 1929.

Sources & methodologyReferences, data & attribution

Meaning and history draw on the references below. American popularity figures use published Social Security Administration records for this exact spelling; counts below five for a name, sex, and year are omitted. Existing Wiktionary material is available under CC BY-SA. Informal shortening suggestions are identified in the prose.

Wiktionary material is available under CC BY-SA 4.0.

How popular is Alfonso?

In 2025, Alfonso ranked #1,012 among boys in the United States, with 223 recorded uses. The U.S. birth records first list this spelling for boys in 1881; its largest annual count was 574 in 1991. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.

How common is Alfonso?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 14,900
223 of 3,315,165 births
Among boys only
1 in 7,660
0.01% of boys
Rank, 2025
#1,012
of 13,926 boys’ names in use
Coin-flip room size
10,306 kids
Even odds of a second one

Where Alfonso sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 5003%

Put another way: gather 10,306 children born in 2025 and it's an even bet that one of them is another Alfonso. In a class of 30 the chance is Under 1%.

When Alfonsos were born

Half of everyone ever recorded as Alfonso was born before 1974 — so the typical Alfonso is around 51 today.

Median birth year
1974
About 51 years old
Biggest decade
1990s
12.5% of all use
Born in the last 25 years
19.6%
Spread across generations
Recorded since 1950
30,059
People you could plausibly meet
Choose a decade

1990s — 12.5% of all recorded uses (5,201).

Is Alfonso rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−90
Places dropped
Rank vs 5 years ago
−5
Places dropped
Rank vs 10 years ago
−216
Places dropped
Births vs 10 years ago
0.76×
Fewer babies than then
Share of its own peak
38.9%
Peak was 1991 (574)
Years since peak
34
Years
Year-to-year steadiness
Steady
11.1% average annual change
Best rank ever
#294
1929

Spellings of Alfonso

Alfonso is not the most common spelling — Alonzo is, with 37.1% against Alfonso's 33.5%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Alfonso is used

Across 2016–2025, Alfonso was most concentrated in Arizona — about 1 in 2,703 boys, against 1 in 6,236 across all states with data. It was least common in Ohio (1 in 100,000).

137 per 100,000

Most concentrated

  1. 1Arizona1 in 2,703
  2. 2California1 in 2,941
  3. 3Texas1 in 3,125
  4. 4Illinois1 in 5,556
  5. 5New Mexico1 in 5,882
  6. 6Florida1 in 7,143
  7. 7Colorado1 in 9,091
  8. 8Washington1 in 9,091

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Alfonso around the world

Where Alfonso ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    1997–2025
    #2,664
    in 2025
  • France
    1918–2023
    #6,716
    in 2023
  • Canada
    1992–2023
    #2,026
    in 2023
  • South Australia
    1953–2013
    #754
    in 2013

Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.

Notable people named Alfonso

People whose public names include Alfonso, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Alfonso in other languages

Cross-language forms and variants of Alfonso. Linked forms have their own page here.

AfonsoAlfonsAlonsoAlfonzoAlphonsAlphonseAlphonsoIldefonsoAlfonzAlfonsasAlfonsusAlifonsoAdefonsusIldelfonso

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Alfonso by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#1,012
Trend vs 5 yrs ago
Down 5
Best rank ever
#294
1929
Peak year
1991
574 that year
First recorded
1881
Last recorded
2025
All-time count
41,464
Count in 2025
223

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#3,856
1931
Peak year
1972
9 that year
First recorded
1922
Last recorded
1991
All-time count
115
Count in 2025
Under 5

Names similar to Alfonso

Matched on shared beginnings and endings, similar length, and comparable popularity.

Names with a curve like Alfonso

Not spelling — timing. These names rose, peaked and faded in the same years as Alfonso, so they read as being from the same moment even when they look nothing alike.

Sibling names for Alfonso

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Alfonso