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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The Complete Story of the Oreilly Family
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- ✓ The true origin & meaning of Oreilly
- ✓ The Oreilly coat of arms & heraldry
- ✓ Migration journey across the world
- ✓ Where Oreilly families live today
- ✓ Notable Oreilly bearers in history
- ✓ Name variations & spellings worldwide
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Similar Surnames to Oreilly
These surnames share similar popularity, spelling, or cultural background with Oreilly.
Other European Surnames
Explore more surnames with European roots. There are 162,254 surnames in our database — here are some that share the same European origin as Oreilly.
Frequently Asked Questions About Oreilly
Top Surnames Starting with O
The most common American surnames that begin with the letter O, ranked by population.
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