Dennehy — Last Name Origin & Meaning

French/Spanish origin Rank #16,544 in the US 1,735 Americans

US Rank (2010)
#16,544
▼ Down 764 since 2000
People in the US
1,735
0.59 per 100K people
Origin
French/Spanish
French
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Origin & Meaning of the Dennehy Surname

What does the last name Dennehy mean?

The surname Dennehy carries the meaning "Of or from." It is derived from the French language and has been passed down through generations, reflecting the occupations, locations, or characteristics of early bearers of the name. With 1,735 bearers in the 2010 US Census, Dennehy ranks as the #16,544 most common surname in the United States.

Where does the surname Dennehy come from?

The Dennehy surname has its roots in French/Spanish heritage. Names of French/Spanish 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 Dennehy name far beyond its original homeland.

Language of Origin

The linguistic roots of Dennehy trace back to French. Understanding the original language helps decode the meaning and evolution of the name from its earliest recorded forms to the modern spelling used today.

French/Spanish French

Quick Facts

Surname Dennehy
Meaning Of or from
Origin French/Spanish
Language French
US Rank (2010) #16,544
US Count (2010) 1,735
Per 100K People 0.59
First Letter D

Ethnic Distribution of Dennehy

According to the US Census, the Dennehy surname is distributed across the following ethnic groups. This data reflects self-reported ethnicity among 1,735 Americans with the Dennehy last name.

White 95.27%
Hispanic 2.77%
Asian/PI 0.63%
Two+ Races 0.81%
Ethnic distribution of the Dennehy surname in the US (2010 Census)
Ethnicity Percentage
White95.27%
Hispanic2.77%
Asian/Pacific Islander0.63%
Two or More Races0.81%

Popularity of Dennehy Over Time

Comparing US Census data from 2000 and 2010 shows how the Dennehy surname has changed in prevalence.

Census 2000
#15,780
1,696 people
Down 764
Census 2010
#16,544
1,735 people

The number of Americans with the Dennehy surname increased by 39 between 2000 and 2010.

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  • ✓ The true origin & meaning of Dennehy
  • ✓ The Dennehy coat of arms & heraldry
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Similar Surnames to Dennehy

These surnames share similar popularity, spelling, or cultural background with Dennehy.

Other French/Spanish Surnames

Explore more surnames with French/Spanish roots. There are 162,254 surnames in our database — here are some that share the same French/Spanish origin as Dennehy.

Frequently Asked Questions About Dennehy

The surname Dennehy is of French/Spanish origin. Of or from
The surname Dennehy is ranked #16,544 in the United States with approximately 1,735 people bearing this name as of the 2010 US Census.
Of or from. The name has French/Spanish roots and has been present in the United States for generations.
According to US Census data, the Dennehy surname is distributed as: 95.3% White. This reflects the diverse heritage of Americans with this name.
To trace your Dennehy ancestry, consider using DNA testing services like Ancestry.com, 23andMe, or MyHeritage. These services can connect you with relatives and reveal your ethnic heritage and migration patterns.

Top Surnames Starting with D

The most common American surnames that begin with the letter D, ranked by population.

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