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

DiGuglielmo, 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 DiGuglielmo surname is from the 2010 census data.

Popularity of DiGuglielmo in America

DiGuglielmo is the 48256th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The DiGuglielmo surname appeared 438 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 DiGuglielmo.

We can also compare 2010 data for DiGuglielmo 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 DiGuglielmo

The surname DIGUGLIELMO is of Italian origin, derived from the medieval Italian and Latin forms of the name "William" - Guglielmo and Willelmus respectively. The name traces its roots back to the Germanic elements "wil" meaning "will" or "desire" and "helm" meaning "helmet" or "protection".

This surname likely originated in Southern Italy, particularly in the regions of Campania and Calabria, where Norman and French influence was strong during the Middle Ages. It is believed to have emerged as a patronymic surname, indicating "son of Guglielmo" or "son of William".

One of the earliest recorded instances of the name can be found in the Codice Diplomatico Barese, a compilation of medieval documents from the city of Bari in Puglia, where a certain Guglielmo di Sergio is mentioned in a charter dated 1210.

Another notable early reference is in the Registri Angioini, a collection of administrative records from the Angevin dynasty's rule over the Kingdom of Naples in the 13th century, where a Guilielmus de Guglielmo is listed as a landowner in the province of Salerno in 1275.

During the Renaissance period, the DIGUGLIELMO name appears to have been particularly prominent in the city of Naples. In 1470, a Galeazzo di Guglielmo is recorded as a notary public in the city's archives. A century later, in 1573, a Francesco di Guglielmo is mentioned as a renowned sculptor and architect, responsible for the design of several churches and palaces in Naples.

In the 17th century, a notable figure bearing the DIGUGLIELMO name was Giovan Battista di Guglielmo (1592-1668), a renowned jurist and legal scholar who served as a judge in the Supreme Court of Naples and authored several influential treatises on Neapolitan law.

Another prominent individual was Cesare di Guglielmo (1718-1792), a celebrated painter and fresco artist who decorated numerous churches and palaces throughout Southern Italy, including the Royal Palace of Caserta.

As the name spread beyond its original homeland, it underwent various spelling variations, such as Digugliermo, Diguglielmi, and Deguglielmis, reflecting local dialects and linguistic influences.

Race and ethnic origin of people with the last name DiGuglielmo

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

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 DiGuglielmo 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 DiGuglielmo 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 DiGuglielmo was researched and written by our team of onomatology and genealogy experts.

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

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