Alonsso
A Spanish variant of the masculine name Alfonso, meaning "noble and ready".
Name Census estimates that about 5 living Americans carry the first name Alonsso. The name is used almost exclusively for boys. The average person named Alonsso today is around 4 years old, and the year with the single highest number of Alonsso births was 2022 (5 babies).
This page is the full Name Census profile for Alonsso. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
Key insights
- • Fewer than 100 living Americans are believed to carry the name Alonsso. It is among the rarest names in the SSA records.
People living today
5
~ 1 in 68,550,868 Americans
Peak year
2022
5 babies that year
Average age
4
years old
2022 SSA rank
#12,441
Tracked since 2022
Popularity
Alonsso: popularity over time
Babies born per year
Decades
Alonsso by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Alonsso during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
| Decade | Male | Female | Total |
|---|---|---|---|
| 2020s | 5 | 0 | 5 |
Origin
Meaning and history of Alonsso
The name Alonsso is a Spanish variation of the Germanic name Alfonso, which itself derives from the medieval Iberian name Alfons. This name has its roots in the Gothic language and is a compound of the elements alf, meaning "elf" or "supernatural being," and funs or funiz, meaning "ready" or "eager." The name was likely introduced to the Iberian Peninsula by the Visigoths, a Germanic tribe that ruled parts of the region from the 5th to the 8th centuries.
The earliest known bearer of the name Alfonso was Alfonso I, also known as Alfonso the Catholic, the King of Asturias from 739 to 757 AD. He was a key figure in the Christian resistance against the Moorish conquest of the Iberian Peninsula, and his victory at the Battle of Covadonga in 718 is considered the starting point of the Reconquista, the centuries-long struggle to reclaim the region from Muslim rule.
One of the most famous bearers of the name was Alfonso X, also known as Alfonso the Wise or Alfonso the Learned, who ruled as King of Castile and León from 1252 to 1284. He was a prolific patron of the arts and sciences and oversaw the production of numerous works on topics ranging from astronomy to law. His court was a center of learning and cultural exchange, and he was instrumental in the development of the Castilian language.
Another notable Alonsso was Alonso de Ercilla y Zúñiga (1533-1594), a Spanish soldier and poet best known for his epic poem La Araucana, which chronicles the Spanish conquest of Chile and the resistance of the Mapuche people. The poem is considered one of the greatest works of Spanish Renaissance literature and a valuable historical account of the conflict.
In the world of exploration, Alonso de Ojeda (1468-1515) was a Spanish navigator and conquistador who led several expeditions to the Caribbean and South America in the early 16th century. He is credited with giving the name Venezuela ("Little Venice") to the region now known as Venezuela, and his explorations contributed significantly to the mapping of the northern coast of South America.
Finally, Alonso Sánchez Coello (1531-1588) was a Spanish Renaissance painter known for his portraits of the Spanish royal family and nobility. His works, which include portraits of King Philip II and members of his court, are highly regarded for their technical mastery and attention to detail, and they provide valuable insights into the fashion and customs of the time.
People
Alonsso + last name combinations
How many people share a full name with Alonsso as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with A
Other first names starting with A with a similar number of bearers.
FAQ
Alonsso: questions and answers
How many people in the U.S. are named Alonsso?
Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Alonsso going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 68,550,868 US residents.
Is Alonsso a common name?
We classify Alonsso as "Very Rare". It ranks above 18.2% of all first names in the SSA dataset by living bearers. Across the full history of the data, 5 babies have been registered with this name.
When was Alonsso most popular?
The single biggest year for Alonsso was 2022, when 5 babies received the name. The fact that the average living Alonsso is about 4 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
What does the SSA popularity chart show?
The chart tracks births, not the number of people alive with the name today. Each point shows how many babies were given the name Alonsso in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Alonsso a male name?
Yes, 100.0% of people registered as Alonsso in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Is Alonsso still being used today?
Yes. The SSA still recorded Alonsso in 2024, and the page above shows its latest-year rank where available. A name can be well past its peak and still remain in steady use, especially if it built up a large population over earlier decades.
Why can a name have a lot of living bearers even if it is not trendy now?
Because living-bearer counts and current baby-name popularity measure different things. A name like Alonsso can build up a very large population over many decades, even if fewer parents are choosing it now than they did at its peak.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.
Does every first name have Census demographic data?
No. The public Census first-name release only covers names that met the Bureau's publication rules, so many rarer names in the SSA files do not have a published Census demographic snapshot. In those cases, the page still shows the SSA trend, gender history, and state data.
How many people have Alonsso as a first name?
If you just want to know how many people share the name Alonsso, HowManyOfMe.org gives you the headline number in one glance.