Dalonzo
An English masculine name derived from the Spanish name Alfonso.
Name Census estimates that about 5 living Americans carry the first name Dalonzo. The name is used almost exclusively for boys. The average person named Dalonzo today is around 23 years old, and the year with the single highest number of Dalonzo births was 2003 (5 babies).
This page is the full Name Census profile for Dalonzo. 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 Dalonzo. It is among the rarest names in the SSA records.
People living today
5
~ 1 in 68,550,868 Americans
Peak year
2003
5 babies that year
Average age
23
years old
2003 SSA rank
#11,239
Tracked since 2003
Popularity
Dalonzo: popularity over time
Babies born per year
Decades
Dalonzo 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 Dalonzo during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
| Decade | Male | Female | Total |
|---|---|---|---|
| 2000s | 5 | 0 | 5 |
Origin
Meaning and history of Dalonzo
The given name Dalonzo is believed to have originated from the Spanish language, with its roots tracing back to the medieval period. It is a variation of the name Alonzo, which itself is derived from the Germanic name Alfonso or Alphonso.
During the Middle Ages, the name Alfonso was widely used in the Iberian Peninsula, particularly in regions under the influence of the Catholic Church. It is believed to be a combination of the Germanic elements "alf" meaning "elf" or "supernatural being" and "funso" meaning "ready for combat" or "eager for battle."
One of the earliest recorded instances of the name Dalonzo can be found in historical records from the 15th century, where it was used by a minor noble family in the region of Andalusia, Spain. However, it is unclear whether this was an intentional variation or simply a misspelling of the more common Alfonso.
Throughout history, there have been several notable individuals who bore the name Dalonzo. One of the earliest was Dalonzo de Castilla, a Spanish explorer who accompanied Christopher Columbus on his second voyage to the Americas in 1493. Another was Dalonzo Gutiérrez, a 16th-century Spanish conquistador who participated in the conquest of Mexico under Hernán Cortés.
In the 17th century, Dalonzo Fernández de Córdoba was a renowned Spanish playwright and poet, known for his works that explored themes of love, honor, and duty. A century later, Dalonzo Montañez was a notable figure in the Spanish War of Independence, leading a guerrilla resistance against the French occupation.
More recently, in the 19th century, Dalonzo Alcántara was a Mexican politician and diplomat who served as the ambassador to the United States during the presidency of Benito Juárez.
While the name Dalonzo has remained relatively uncommon throughout history, these individuals have left their mark in various fields, from exploration and conquest to literature and politics, contributing to the rich tapestry of the name's legacy.
People
Dalonzo + last name combinations
How many people share a full name with Dalonzo as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with D
Other first names starting with D with a similar number of bearers.
FAQ
Dalonzo: questions and answers
How many people in the U.S. are named Dalonzo?
Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Dalonzo 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 Dalonzo a common name?
We classify Dalonzo 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 Dalonzo most popular?
The single biggest year for Dalonzo was 2003, when 5 babies received the name. The fact that the average living Dalonzo is about 23 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 Dalonzo in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Dalonzo a male name?
Yes, 100.0% of people registered as Dalonzo 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 Dalonzo still being used today?
Yes. The SSA still recorded Dalonzo 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 Dalonzo 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 are called Dalonzo?
Find out how many people share the name Dalonzo on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.