Find out how popular the last name Ruo is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Ruo.

Ruo, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Ruo surname is from the 2010 census data.

Popularity of Ruo in America

Ruo is the 127494th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Ruo surname appeared 134 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname Ruo.

We can also compare 2010 data for Ruo to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

The history of the last name Ruo

The surname RUO is believed to have originated in Italy, specifically in the regions of Tuscany and Emilia-Romagna, during the medieval period. It is thought to have derived from the Italian word "ruvo," meaning a small stream or brook, suggesting that the earliest bearers of this name may have lived near a waterway or worked in a profession related to water sources.

One of the earliest recorded instances of the RUO surname can be found in the historical records of the city of Siena, dated back to the 13th century. A document from 1287 mentions a certain "Guido di RUO," who was a prominent landowner in the region. This suggests that the RUO family had already established themselves as a notable presence in Tuscany by that time.

In the 14th century, the RUO surname appeared in several tax records and property deeds in the city of Bologna, indicating that the name had spread to the neighboring region of Emilia-Romagna. One noteworthy individual was Bartolomeo RUO, a successful merchant and banker who lived in Bologna during the late 1300s.

As the centuries progressed, the RUO surname continued to maintain a presence in various parts of Italy. In the 16th century, a renowned artist named Giovanni Battista RUO (1515-1587) from Siena gained recognition for his religious paintings and frescoes, which adorned several churches in his native city.

During the Renaissance period, the RUO family produced several scholars and intellectuals, including Vincenzo RUO (1541-1612), a philosopher and professor at the University of Padua, who was highly regarded for his contributions to the fields of logic and metaphysics.

In the 18th century, a notable figure was Antonio RUO (1724-1798), a military commander who fought in the Napoleonic Wars and played a crucial role in defending the city of Genoa against French forces in 1795.

While the RUO surname has maintained a presence throughout Italy, it has also spread to other parts of the world through immigration. However, the historical records and early mentions of the name suggest that its roots can be traced back to the regions of Tuscany and Emilia-Romagna in medieval and Renaissance Italy.

Race and ethnic origin of people with the last name Ruo

We also have some data on the ancestry of people with the surname Ruo.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:

1. White only
2. Black only
3. American Indian and Alaskan Native only
4. Asian and Pacific Islander only
5. Hispanic
6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Ruo was:

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Ruo has changed in the 10 years between the two census surveys.

Data source

The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.

The history and meaning of the name Ruo was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Ruo, please contact us.

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