2010
#149,395
National surname rank
Recorded bearers 110
First available Census row
Per 100,000 0.04
Very Rare Last name
Osano
A surname originating from Italy, possibly derived from a place name.
According to the 2020 US Census Bureau surname tables, roughly 139 Americans carry the last name Osano. That puts it at #141,309 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,465,859 residents).
This page is the full Name Census profile for the Osano 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
139
1 in 2,465,859
Census rank
#141,309
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
121
very rare in the US
Popularity narrative
The Census Bureau recorded 121 bearers of the surname Osano in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 141309th position in the national surname ranking.
Among Census respondents with the surname Osano, the largest self-reported group is Black at 47.1%. The next largest groups are Asian/Pacific Islander (41.3%) and Hispanic (9.1%).
Origin
Meaning and origin of Osano
The surname Osano originated in Italy, with roots dating back to the 12th century. It is believed to have derived from the Italian word "osano," meaning "bold" or "daring." The name was initially found in the regions of Tuscany and Umbria, where it was associated with families known for their courage and bravery.
One of the earliest recorded instances of the Osano surname can be traced back to a document from the city of Perugia in 1283, which mentions a certain Guido Osano, a local merchant and landowner. Another notable reference is found in the "Codice Diplomatico Aretino," a collection of historical documents from the city of Arezzo, where a Giovanni Osano is mentioned in a deed from 1312.
In the 15th century, the Osano family gained prominence in the city of Florence, where they were involved in the wool trade and banking industries. One notable member was Bartolomeo Osano (1420-1492), a successful merchant and financier who served as a diplomat for the Florentine Republic.
During the Renaissance period, the Osano name was also associated with the arts. Antonio Osano (1475-1544) was a renowned painter from Siena, known for his religious works and frescoes adorning churches throughout Tuscany. His contemporary, Giacomo Osano (1490-1562), was a skilled sculptor who contributed to the decoration of the Duomo in Florence.
In the 17th century, the Osano family had branches in various parts of Italy, including Naples and Rome. One notable figure was Vincenzo Osano (1612-1678), a Jesuit scholar and theologian who taught at the prestigious Roman College and authored several works on philosophy and theology.
Another notable Osano was Giuseppe Osano (1720-1787), a military officer from Naples who served in the Spanish army during the War of the Polish Succession. He later became a respected military engineer and was involved in the fortification of several cities in southern Italy.
Throughout history, the Osano surname has been associated with individuals from various walks of life, including artists, scholars, merchants, and military figures, all contributing to the rich cultural heritage of Italy.
Demographics
Ancestry and ethnicity for Osano
Among Census respondents with the surname Osano, the largest self-reported group is Black at 47.1%. The next largest groups are Asian/Pacific Islander (41.3%) and Hispanic (9.1%).
The bar chart below shows how Osano 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 Osano surname at the time of the 2020 Census, not any inherent property of the name itself.
- Black or African American47.1% · 57
- Asian and Pacific Islander41.3% · 50
- Hispanic or Latino9.1% · 11
- White1.7% · 2
- Two or more races0.8% · 1
Timeline
Historical Census data for Osano
Osano appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#141,309
National surname rank
Recorded bearers 121
+11 bearers (+10.0%)
Per 100,000 0.04
Rank movement Up 8,086 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #149,395 | 110 | 0.04 | First available Census row | First available Census row |
| 2020 | #141,309 | 121 | 0.04 | +11 bearers (+10.0%) | Up 8,086 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
2010 vs 2020 Census
How has the Osano surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
20102020
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #149,395 | #141,309 | 5.4% |
| Count | 110 | 121 | 10.0% |
| Per 100K | 0.04 | 0.04 | 1.2% |
Between the 2010 and 2020 Census, the number of Osano bearers went from 110 to 121 (+10.0% change). The surname moved up 8,086 positions in the national ranking, going from #149,395 to #141,309.
FAQ
Osano surname: questions and answers
How many people in the U.S. have the surname Osano?
Name Census estimates that about 139 living Americans carry the surname Osano. Using the current population baseline, that works out to roughly 1 in 2,465,859 residents.
How common is Osano?
Osano ranks #141,309 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 121 people with the surname Osano. That is different from the site's living-bearer estimate (139), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 0 of them to have the surname Osano.
Has Osano become more or less common over time?
Between 2010 and 2020, the surname Osano went from 110 recorded bearers to 121. That is an increase of 11 (+10.0%). In the national ranking it rose from #149,395 to #141,309.
What does the Census say about the background of Osano?
Among Census respondents with the surname Osano, the largest self-reported group is Black at 47.1%. The next largest groups are Asian/Pacific Islander (41.3%) and Hispanic (9.1%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Which group reports this surname most often?
Black is the largest self-reported group for the surname Osano in the 2020 Census, accounting for 47.1% (57 people in the source table).
What is the full ancestry breakdown?
Osano appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Black (47.1%), Asian/Pacific Islander (41.3%), Hispanic (9.1%). 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.
Is this page using the latest Census data?
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 Osano (2010, 2020).
Does the Census include every surname?
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.
Why don't the ancestry percentages always add up to exactly 100%?
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.
What does Osano mean?
A surname originating from Italy, possibly derived from a place name. The fuller origin note on this page goes into more detail.
Where does the surname data come from?
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.
How does Name Census estimate living bearers?
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 Osano (0.04 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
How many people share the surname Osano?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.