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Last Name Diiulio

What is the origin of the last name Diiulio?

The surname DiULIO is believed to have Italian origins, specifically from the regions of Sicily and Southern Italy. It is derived from a variety of medieval naming traditions that used topographical features as surnames, such as "di" meaning "from" or "of" and "Ulio," which may refer to a location named for an ulivo tree (olive tree in Italian). However, it's important to note that surname origins can be complex and vary based on individual family histories. For accurate information about the specific origins of your DiULIO ancestry, further research or consultation with a genealogist may be necessary.

Learn more about the origin of the last name Diiulio

The meaning and origin of the last name Diiulio

The surname DiIulio is an Italian-American name that originates from southern Italy, specifically Sicily and Calabria. It is derived from the medieval given name Giuliano, which means "youthful" or "juvenile" in Latin. Over time, the name was often shortened to just 'DiIulio,' with 'di' being a common Italian prefix meaning 'of' or 'belonging to.' The surname DiIulio is relatively common among Italian immigrants who settled in the United States, particularly during the late 19th and early 20th centuries. Today, it remains a prominent name within the Italian-American community.

Geographical distribution of the last name Diiulio

The surname DiIulio is primarily concentrated in regions of Italian heritage, particularly in Italy and the United States. In Italy, it is predominantly found in the southern region of Calabria, where it originated from the town of Gambarie. In the United States, significant populations of people with the last name DiIulio can be found in areas with a high concentration of Italian-Americans, such as New York, New Jersey, Pennsylvania, and Illinois. Additionally, there are smaller communities bearing the surname DiIulio in Canada and Australia due to migration from the United States. The distribution of this surname reflects historical migration patterns of Italian immigrants seeking opportunities outside their homeland.

Variants and spellings of the last name Diiulio

The surname Diulio has several variations and spellings, primarily due to differences in transcription and translation over time. Some common spelling variations include De Julio, Dejulio, DeJulio, de Giulio, DeGiulio, Di Iulio, and Di Julie. These variations may arise from regional dialects or changes in the way names were recorded historically. Additionally, some individuals may choose to Anglicize their surnames when immigrating to English-speaking countries, leading to further alterations. While these variations can make genealogical research more complex, they also provide insight into the cultural and linguistic history of the Diulio family name.

Famous people with the last name Diiulio

Notable individuals with the surname DiIulio include:

1. Michael DiIulio Jr., an American politician who served as White House Staff Secretary under President George W. Bush from 2005 to 2007. He is also known for his work as a political scientist and author.

2. David DiIulio, a mathematician recognized for his contributions to the field of commutative algebra, particularly in the study of toric varieties and their applications. He has held positions at universities such as Harvard University and Yale University.

3. Joseph DiIulio Sr., an American academic who served as the president of La Salle University from 1985 to 2004. Under his leadership, La Salle underwent significant expansion and modernization.

4. James D. DiIulio Jr., an American political scientist, author, and former government official. He was Assistant to the President for Domestic Policy in the George W. Bush administration from 2001 to 2002.

These individuals have made significant contributions in various fields such as politics, academia, and mathematics.

Genealogical research on the last name Diiulio

The surname DiIulio originates from Southern Italy, specifically from the region of Calabria. It is derived from the Latin name Julius, which was common among the ancient Romans. Over time, the spelling and pronunciation of the name have varied due to regional dialects and migrations.

The DiIulios can be traced back to the 16th century in Italy. Notable figures with this surname include Giuseppe Di Iulio (1870-1934), an Italian immigrant who played a significant role in the establishment of the Diocese of Scranton, Pennsylvania in the United States.

In terms of migration, many DiIulios emigrated from Italy to the United States during the late 19th and early 20th centuries, particularly to New York, Philadelphia, and Pennsylvania, seeking better economic opportunities. Today, a large number of DiIulios reside in these areas, as well as in other parts of the U.S. and Canada.

Genealogical research on the DiIulio family often involves tracing immigrant ancestors back to their Italian origins, then following them through U.S. census records, naturalization documents, church records, and other historical resources to build a comprehensive family tree.

Last name distribution maps

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Sources & References

About the author :
NomOrigine Team
NomOrigine Team
Passionate about genealogy, name history, and linguistics, we have been analyzing the origins of names for over 3 years. Our content is based on verified historical, etymological, and statistical data.
Last updated : 27 July 2025

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