Diogo
Of Portuguese origin, meaning "supplanter" or "successor".
Name Census estimates that about 436 living Americans carry the first name Diogo. The name is used almost exclusively for boys. The average person named Diogo today is around 18 years old, and the year with the single highest number of Diogo births was 2004 (67 babies).
This page is the full Name Census profile for Diogo. 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.
For a British comparison, Name Census UK has a UK baby-name profile for Diogo with official rankings and popularity over time.
People living today
436
~ 1 in 786,134 Americans
Peak year
2004
67 babies that year
Average age
18
years old
2024 SSA rank
#9,188
Tracked since 2001
Census
Diogo in the 2020 Census
The 2020 Census recorded 1,015 people with the first name Diogo, which placed it at #12,302 in the published first-name tables. This is a snapshot of people who already had the name at the time of the Census.
The SSA sections elsewhere on this page answer a different question: how often parents gave the name to babies over time. The "people living today" figure on this page is different again: it is a current estimate built from SSA birth records and age-based survival rates, so the two numbers are not expected to match exactly.
2020 Census rank
#12,302
National first-name rank
People counted
1.0K
1,015 in the published race/origin table
Per 100,000
0.3
People with this name in 2020
Largest reported group
White
63.1% of people with this name
Demographics
Ancestry and ethnicity for Diogo
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Diogo is White at 63.1%. The next largest groups are Hispanic (28.3%) and Black (4.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself.
The bar chart below shows how people with the first name Diogo described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given name, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown so the breakdown is easy to read across every published category. Because the 2020 Census first-name file also includes raw headcounts for each group, Name Census can show those alongside the percentages in the legend and hover tooltip.
Keep in mind that these are self-reported numbers. A first name does not determine a person's race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the name Diogo at the time of the 2020 Census, not any inherent property of the name itself.
- White63.1% · 640
- Hispanic or Latino28.3% · 287
- Black or African American4.1% · 42
- Asian and Pacific Islander2.4% · 24
- Two or more races1.9% · 19
- American Indian and Alaska Native0.3% · 3
Popularity
Diogo: popularity over time
The SSA tracks Diogo from the 2000s through to the 2020s, spanning 3 decades of birth certificate data. The biggest single decade for the name was the 2000s, with 305 total registrations. Usage has dropped considerably from its 2000s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Diogo 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 Diogo during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Diogos live
The SSA's state-level files cover 7 states and territories. California, Texas, New York recorded the most babies named Diogo, while Illinois, Massachusetts, Florida recorded the fewest. The average across all reporting states is about 22 registrations each.
Origin
Meaning and history of Diogo
The given name Diogo originated from the Portuguese language and culture. It emerged during the Late Medieval period, around the 13th century. The name is derived from the Late Latin name Didacus, which in turn came from the Greek name Didymos, meaning "twin". Similar spellings include Diego in Spanish and Diago in Italian.
One of the earliest recorded uses of the name Diogo was in the 13th century, referring to Diogo Lopes de Haro, a Portuguese nobleman and military leader who fought against the Moors during the Reconquista. He lived from around 1210 to 1285.
In the 15th century, the explorer Diogo Cão, born around 1452, is credited as the first European to discover the Congo River and explore the western coast of Africa. He was a notable navigator during the Age of Discovery.
Another historical figure with this name was Diogo de Azambuja, a Portuguese explorer and colonial administrator who lived from around 1432 to 1518. He played a significant role in establishing Portuguese settlements along the western coast of Africa.
Diogo Ribeiro, born in 1459, was a renowned Portuguese cartographer and one of the most important map-makers of the Age of Discovery. His world map, known as the "Ribeiro Planisphere" or "Carta Universal," is considered one of the earliest surviving Portuguese nautical charts.
In the 16th century, Diogo de Couto, a Portuguese historian and writer, lived from 1542 to 1616. He is best known for his work "Décadas da Ásia," a historical account of the Portuguese presence in Asia, particularly in India.
These are just a few examples of notable individuals throughout history who bore the given name Diogo, which has its roots in Portuguese and Late Latin origins, with connections to Greek words for "twin" and early references dating back to the 13th century.
People
Diogo + last name combinations
How many people share a full name with Diogo 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
Diogo: questions and answers
How many people in the U.S. are named Diogo?
Name Census puts the figure at roughly 436 living Americans. We arrive at this by taking every SSA birth registration for Diogo 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 786,134 US residents.
Is Diogo a common name?
We classify Diogo as "Very Rare". It ranks above 83.2% of all first names in the SSA dataset by living bearers. Across the full history of the data, 441 babies have been registered with this name.
When was Diogo most popular?
The single biggest year for Diogo was 2004, when 67 babies received the name. The fact that the average living Diogo is about 18 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Diogo in the 2020 Census?
The published 2020 Census first-name tables recorded 1,015 people with the name Diogo, or 0.34 per 100,000 residents. That placed it at #12,302 in the national Census ranking for first names.
Why is the Census count different from the living estimate?
Because they measure different things. The Census figure is a count of people who had the name Diogo in 2020. The living estimate aims to answer a current question instead: how many people with the name are alive today, based on SSA birth records and age-based survival rates. Since one number is a 2020 snapshot and the other is a present-day estimate, they are not expected to be identical.
What does the Census say about the gender split for Diogo?
In the 2020 Census sex table, Diogo appears almost entirely male. Of the 1,006 people counted with this name, 99.7% were male and only a very small share were female. The Census view is a snapshot of people living with the name in 2020, while the SSA section above tracks births across time.
What does the Census say about the background of people named Diogo?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Diogo is White at 63.1%. The next largest groups are Hispanic (28.3%) and Black (4.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself. The percentages in the chart above come from self-reported race and Hispanic-origin responses in the 2020 Census.
Which group reports the name Diogo most often in the Census?
White is the largest reported group for people named Diogo in the 2020 Census, accounting for 63.1% (640 people in the published table).
Why can the Census sex total and race total differ slightly?
The Census Bureau published separate 2020 tables for sex and for race/Hispanic origin, and the released figures can differ slightly because of privacy protection in the public files. That is why this page treats the gender section and the race/origin section as two related snapshots instead of forcing them into one identical total.
Does every first name have Census demographic data?
No. The public Census first-name release only includes names that met the Bureau's publication rules, so many rarer names in the SSA files have no Census demographic snapshot. When that happens, the SSA trend, gender history, and state sections still appear, but the 2020 Census demographic sections are omitted.
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 Diogo in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Diogo a male name?
Yes, 100.0% of people registered as Diogo 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 Diogo still being used today?
Yes. The SSA still recorded Diogo 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 Diogo 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.
How many people share the name Diogo?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.