Origin & Meaning of the Oreilly Surname
What does the last name Oreilly mean?
The surname Oreilly carries the meaning "Family name of European origin." It is derived from the European language and has been passed down through generations, reflecting the occupations, locations, or characteristics of early bearers of the name. With 12,074 bearers in the 2010 US Census, Oreilly ranks as the #2,970 most common surname in the United States.
Where does the surname Oreilly come from?
The Oreilly surname has its roots in European heritage. Names of European origin often reflect the cultural, linguistic, and historical traditions of the communities where they first appeared. Over centuries, migration and cultural exchange have spread the Oreilly name far beyond its original homeland.
Language of Origin
The linguistic roots of Oreilly trace back to European. Understanding the original language helps decode the meaning and evolution of the name from its earliest recorded forms to the modern spelling used today.
Quick Facts
| Surname | Oreilly |
|---|---|
| Meaning | Family name of European origin |
| Origin | European |
| Language | European |
| US Rank (2010) | #2,970 |
| US Count (2010) | 12,074 |
| Per 100K People | 4.09 |
| First Letter | O |
Ethnic Distribution of Oreilly
According to the US Census, the Oreilly surname is distributed across the following ethnic groups. This data reflects self-reported ethnicity among 12,074 Americans with the Oreilly last name.
| Ethnicity | Percentage |
|---|---|
| White | 91.86% |
| Black | 2.05% |
| Hispanic | 3.5% |
| Asian/Pacific Islander | 0.71% |
| Native American | 0.35% |
| Two or More Races | 1.54% |
Popularity of Oreilly Over Time
Comparing US Census data from 2000 and 2010 shows how the Oreilly surname has changed in prevalence.
The number of Americans with the Oreilly surname increased by 850 between 2000 and 2010.
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Other European Surnames
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Frequently Asked Questions About Oreilly
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