Find out how popular the last name DeGuglielmo is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named DeGuglielmo.
A surname originating from the Italian name "Guglielmo", derived from the Germanic name "Wilhelm".
DeGuglielmo, 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 DeGuglielmo surname is from the 2000 census data.
DeGuglielmo is the 147095th most popular name in America based on the data we have collected from the U.S. Census Bureau.
The DeGuglielmo surname appeared 103 times in the 2000 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname DeGuglielmo.
The surname DEGUGLIELMO traces its origins to Italy, specifically to the regions of Southern Italy and Sicily. It emerged during the late Middle Ages, possibly around the 13th to 14th centuries. The name is derived from the Italian form of the Germanic name Wilhelm or William, which means "will or desire" and "helmet or protection." The prefix "de" suggests a noble or locational origin, indicating "of Guglielmo."
Historical records indicate that families bearing the surname DEGUGLIELMO lived prominently in regions such as Campania and Calabria. Early variants of the surname include de Guglielmo and di Guglielmo, showcasing the affix's variable usage depending on dialect and regional habits.
One notable early reference to the name can be found in medieval legal documents and property records from Southern Italy in the 15th century. For instance, a Giovanni de Guglielmo is mentioned in judicial records in Naples in 1478, highlighting an early instance of the surname in historical documents.
Among the first prominent individuals with this surname is Francesco de Guglielmo, born in 1520, a landowner in Calabria who played a significant role during the local conflicts of his time. Another influential figure is Ludovico de Guglielmo (1564-1620), who served as a council member in the town of Salerno and contributed to the socio-political landscape of the area.
In art and culture, Isabella de Guglielmo (1668-1732) gained recognition for her poetry and correspondence, making significant contributions to Italian literature of the Baroque period. Her works were highly appreciated in literary circles across Naples and beyond.
Moving forward, the early 18th century saw Dr. Giacomo de Guglielmo (1703-1761), a well-respected physician in Rome, known for his advancements in early medical practices and public health reforms. His contributions were documented in various medical treatises and letters.
By the early 19th century, the surname appears in records of the Napoleonic Wars, with Captain Antonio de Guglielmo (1787-1825), who served in the Italian divisions allied with Napoleon. His name is recorded in military archives and correspondence, reflecting his role in significant battles and military strategies.
Throughout history, the surname DEGUGLIELMO has seen various alterations depending on migration and regional influences but has remained a testament to its strong Italian heritage and noble lineage. Its bearers have contributed across multiple fields including governance, literature, medicine, and military service, leaving an indelible mark on the rich tapestry of Italian history.
We also have some data on the ancestry of people with the surname DeGuglielmo.
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:
For the most recent 2000 census data, the race/ethnic origin breakdown for DeGuglielmo was:
Race/Ethnicity | Percentage | Total Occurrences |
---|---|---|
Non-Hispanic White Only | 96.12% | 99 |
Non-Hispanic Black Only | (S)% | (S) |
Non-Hispanic Asian and Pacific Islander Only | 0.00% | 0 |
Non-Hispanic American Indian and Alaskan Native | 0.00% | 0 |
Non-Hispanic of Two or More Races | (S)% | (S) |
Hispanic Origin | (S)% | (S) |
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.
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 DeGuglielmo was researched and written by our team of onomatology and genealogy experts.
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<a href="http://namecensus.com/last-names/deguglielmo-surname-popularity/">DeGuglielmo last name popularity, history, and meaning</a>
"DeGuglielmo last name popularity, history, and meaning". NameCensus.com. Accessed on August 2, 2025. http://namecensus.com/last-names/deguglielmo-surname-popularity/.
"DeGuglielmo last name popularity, history, and meaning". NameCensus.com, http://namecensus.com/last-names/deguglielmo-surname-popularity/. Accessed 2 August, 2025
DeGuglielmo last name popularity, history, and meaning. NameCensus.com. Retrieved from http://namecensus.com/last-names/deguglielmo-surname-popularity/.
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