2000
#5,516
National surname rank
First available Census row
A habitational surname derived from the Spanish town of Osuna, likely referring to a person from that place.
According to the 2020 US Census Bureau surname tables, roughly 8,465 Americans carry the last name Osuna. That puts it at #4,657 in the national surname ranking, appearing at a frequency of 2.47 per 100,000 people (about 1 in 40,491 residents).
This page is the full Name Census profile for the Osuna surname. You will find the Census Bureau frequency data, a multi-census history view, an ancestry and ethnicity breakdown based on self-reported demographics, the name's meaning and origin where available, and answers to the most common questions people ask about this surname.
Bearers in the US
8.5K
1 in 40,491
Census rank
#4,657
2020 decennial data
Per 100,000
2.5
Frequency rate
Recorded bearers
7.4K
rare in the US
Popularity narrative
The Census Bureau recorded 7,382 bearers of the surname Osuna in its 2020 decennial surname file. At a rate of 2.47 per 100,000 residents, it holds the 4657th position in the national surname ranking.
Among Census respondents with the surname Osuna, the largest self-reported group is Hispanic at 91.2%. The next largest groups are White (5.5%) and American Indian/Alaska Native (1.7%).
Origin
The surname Osuna originated in Spain, specifically in the town of Osuna, located in the province of Seville, Andalusia. The name Osuna is derived from the Latin word "Urso," which means "bear." This connection is believed to be related to the town's ancient origins as a Roman settlement known as "Urso" or "Colonia Genetiva Urbanorum."
The town of Osuna has a rich history dating back to the Roman era, and it was an important center during the Moorish rule of Spain. The surname Osuna likely emerged as a toponymic name, meaning it was derived from the place name Osuna, during the medieval period when hereditary surnames became more common.
One of the earliest recorded references to the surname Osuna can be found in the "Repartimiento de Sevilla," a document from the 13th century that recorded the distribution of land and properties after the Reconquista of the city of Seville in 1248. This document mentions individuals with the surname Osuna, indicating their presence in the region at that time.
Throughout history, several notable individuals have borne the surname Osuna. One of the most prominent was Pedro Téllez-Girón, Duke of Osuna (1532-1590), a Spanish nobleman and military leader who served as Viceroy of Naples and Viceroy of Sicily in the 16th century. Another notable figure was Pedro de Osuna (1492-1578), a Spanish Franciscan friar and author of several influential spiritual works.
Other individuals with the surname Osuna include Juan de Osuna (fl. 1507-1522), a Spanish humanist and translator; Andrés de Osuna (16th century), a Spanish Franciscan friar and author; and Francisco de Osuna (1497-1578), a Spanish Dominican friar and mystic writer.
The surname Osuna has also been associated with various place names in Spain, such as Osuna de Jalón and Osuna de Ebro, reflecting the geographic distribution of the name throughout the country.
Demographics
Among Census respondents with the surname Osuna, the largest self-reported group is Hispanic at 91.2%. The next largest groups are White (5.5%) and American Indian/Alaska Native (1.7%).
The bar chart below shows how Osuna bearers 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 surname, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown for every Census year so the breakdown stays comparable over time. When the source file also includes raw headcounts, Name Census shows those alongside the percentages in the legend.
Keep in mind that these are self-reported numbers. A person's surname does not determine their race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the Osuna surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Osuna appears in 3 published Census surname files: 2000, 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2000
National surname rank
First available Census row
2010
National surname rank
+1,808 bearers (+31.2%)
2020
National surname rank
-219 bearers (-2.9%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #5,516 | 5,793 | 2.15 | First available Census row | First available Census row |
| 2010 | #4,666 | 7,601 | 2.58 | +1,808 bearers (+31.2%) | Up 850 places |
| 2020 | #4,657 | 7,382 | 2.47 | -219 bearers (-2.9%) | Up 9 places |
For 2020, the Census Bureau published race and Hispanic-origin columns as counts rather than percentages. Name Census converts those counts back into shares so the ancestry section stays comparable with the older surname files.
Year on year
How has the Osuna surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #4,666 | #4,657 | 0.2% |
| Count | 7,601 | 7,382 | -2.9% |
| Per 100K | 2.58 | 2.47 | -4.3% |
Between the 2010 and 2020 Census, the number of Osuna bearers went from 7,601 to 7,382 (-2.9% change). The surname moved up 9 positions in the national ranking, going from #4,666 to #4,657.
FAQ
Name Census estimates that about 8,465 living Americans carry the surname Osuna. Using the current population baseline, that works out to roughly 1 in 40,491 residents.
Osuna ranks #4,657 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 2.47 per 100,000 residents, which is about 2 people out of every 100,000.
The raw 2020 Census file counted 7,382 people with the surname Osuna. That is different from the site's living-bearer estimate (8,465), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
It is the Census Bureau's normalized frequency measure. A rate of 2.47 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 2 of them to have the surname Osuna.
Between 2010 and 2020, the surname Osuna went from 7,601 recorded bearers to 7,382. That is a decrease of 219 (-2.9%). In the national ranking it rose from #4,666 to #4,657.
Among Census respondents with the surname Osuna, the largest self-reported group is Hispanic at 91.2%. The next largest groups are White (5.5%) and American Indian/Alaska Native (1.7%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Hispanic is the largest self-reported group for the surname Osuna in the 2020 Census, accounting for 91.2% (6,733 people in the source table).
Osuna appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (91.2%), White (5.5%), American Indian/Alaska Native (1.7%). For 2020, the source file also published raw headcounts for each group, which is why this page can show both percentages and counts in the ancestry section.
Yes. This page is using the latest surname file currently loaded on Name Census, which is 2020. The historical section above also keeps any older Census surname entries we have for Osuna (2000, 2010, 2020).
No. The Census Bureau only publishes surnames that appeared at least 100 times in a given decennial Census. That means very rare surnames are excluded entirely, and a surname can appear in one Census release but disappear from a later one if it falls below the reporting threshold.
There are two main reasons: rounding and suppression. The Census Bureau rounds published values, and it may suppress very small cells to protect privacy. For 2020, the Bureau also published raw group counts rather than direct percentages, so Name Census converts those counts back into shares for comparability across census years.
A habitational surname derived from the Spanish town of Osuna, likely referring to a person from that place. The fuller origin note on this page goes into more detail.
All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These files list every surname that appeared 100 or more times in the 2020 Census, along with a count, a per-100,000 rate, and a self-reported demographic breakdown. You can read the full explanation on our methodology page.
For surnames, Name Census does not age cohorts the way it does for first names. Instead, it takes the Census Bureau's published frequency for Osuna (2.47 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.