UK boy's name
Alonzo
Derived from a German name meaning "prepared for battle".
For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.
Alonzo is a boy's name in the UK records. People looking for Alonzo popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #1758, with 14 babies registered with the name. Its strongest year in the published records was 2023, with 17 births.
This profile covers 134 England and Wales registrations across 18 recorded years from 2005 to 2024. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.
The latest count is about 82% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 133 living people in the UK are called Alonzo. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2025 or 2026.
Key insights
- • Alonzo ranked #1758 for boys in England and Wales in 2024, with 14 registrations.
- • The name peaked in 2023, when 17 boys were registered as Alonzo.
- • About 133 living people in the UK are estimated to have Alonzo as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#1758
2024
Births in 2024
14
Latest year
Peak year
2023
17 births
Estimated living
133
2026
Meaning
What does Alonzo mean?
The name Alonzo originated from the Spanish and Portuguese languages, derived from the ancient Germanic name Alfonso. Alfonso itself is a compound of the Germanic elements "alf" meaning "elf" and "funso" meaning "ready for battle" or "eager for combat."
The name Alonzo gained popularity during the Middle Ages, particularly in the regions of Spain and Portugal where it was widely used among the nobility and ruling classes. It is believed to have been introduced to the Iberian Peninsula by the Visigoths, a Germanic tribe that ruled parts of Spain and Portugal from the 5th to the 8th centuries.
One of the earliest recorded instances of the name Alonzo can be found in the 9th century, when it was borne by Alfonso II, a king of Asturias in northern Spain who reigned from 791 to 842. Another notable historical figure with this name was Alfonso X, also known as Alfonso the Wise, who was the King of Castile and León from 1252 to 1284. Alfonso X was a renowned patron of the arts and sciences, and his court was a center of learning and cultural advancement during his reign.
In the 11th century, the name Alonzo spread beyond the Iberian Peninsula and gained popularity in other parts of Europe. One of the most famous bearers of this name was Alonso de Ojeda, a Spanish explorer and navigator who accompanied Christopher Columbus on his second voyage to the Americas in 1493. Ojeda later led his own expeditions and played a significant role in the early Spanish exploration and colonization of the Caribbean and South America.
Another notable figure named Alonzo was Alonso de Ercilla y Zúñiga, a Spanish soldier and poet who lived during the 16th century. Ercilla is best known for his epic poem "La Araucana," which chronicles the Spanish conquest of Chile and the resistance of the indigenous Mapuche people.
In the realm of literature, one of the most famous characters named Alonzo is found in John Milton's epic poem "Paradise Lost." Alonzo is one of the fallen angels who follows Satan in his rebellion against God.
Through the ages, the name Alonzo has maintained its connection to Spanish and Portuguese cultures, although it has also gained popularity in other parts of the world, particularly in the Americas due to Spanish and Portuguese influences.
Sourced from namecensus.com.
Popularity
Alonzo over time
The chart below shows babies named Alonzo registered in England and Wales in the years where the name appears in the published records, from 2005 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Alonzo, the clearest high point is 2023. The latest England and Wales figure is 14 births in 2024, compared with 17 at the peak.
Babies born per year
Decades
Alonzo by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Alonzo was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.
| Decade | Average rank | Total births | Years covered |
|---|---|---|---|
| 2020s | #1911 | 62 | 5 |
| 2010s | #3237 | 60 | 9 |
| 2000s | #4285 | 12 | 4 |
Related
Names similar to Alonzo
- Alfie 86,546
- Alexander 85,525
- Adam 71,855
- Archie 59,965
- Arthur 43,586
- Aaron 36,366
- Alex 32,729
- Andrew 20,169
- Arlo 19,061
- Aidan 16,776
- Albie 16,017
- Albert 15,809
FAQ
Alonzo: questions and answers
How popular is the name Alonzo in the UK right now?
In 2024, Alonzo was ranked #1758 for boys in England and Wales, with 14 births registered.
When was Alonzo most popular?
The peak year on record was 2023, with 17 babies registered as Alonzo in England and Wales.
What is the meaning and origin of Alonzo?
Derived from a German name meaning "prepared for battle".
How many people are called Alonzo in the UK?
A total of 134 babies have been registered as Alonzo across the 18 years of ONS England & Wales records shown here.
Which records is this page based on?
The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.