Moriarty — Last Name Origin & Meaning

European origin Rank #3,564 in the US 10,005 Americans

US Rank (2010)
#3,564
▼ Down 175 since 2000
People in the US
10,005
3.39 per 100K people
Origin
European
European

Origin & Meaning of the Moriarty Surname

What does the last name Moriarty mean?

The surname Moriarty 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 10,005 bearers in the 2010 US Census, Moriarty ranks as the #3,564 most common surname in the United States.

Where does the surname Moriarty come from?

The Moriarty 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 Moriarty name far beyond its original homeland.

Language of Origin

The linguistic roots of Moriarty 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.

European European

Quick Facts

Surname Moriarty
Meaning Family name of European origin
Origin European
Language European
US Rank (2010) #3,564
US Count (2010) 10,005
Per 100K People 3.39
First Letter M

Ethnic Distribution of Moriarty

According to the US Census, the Moriarty surname is distributed across the following ethnic groups. This data reflects self-reported ethnicity among 10,005 Americans with the Moriarty last name.

White 95.77%
Black 0.38%
Hispanic 1.95%
Asian/PI 0.57%
Native American 0.23%
Two+ Races 1.1%
Ethnic distribution of the Moriarty surname in the US (2010 Census)
Ethnicity Percentage
White95.77%
Black0.38%
Hispanic1.95%
Asian/Pacific Islander0.57%
Native American0.23%
Two or More Races1.1%

Popularity of Moriarty Over Time

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

Census 2000
#3,389
9,661 people
Down 175
Census 2010
#3,564
10,005 people

The number of Americans with the Moriarty surname increased by 344 between 2000 and 2010.

Discover Your Moriarty Ancestry

Uncover your family's history with a DNA test. Learn where your Moriarty ancestors came from and connect with relatives worldwide.

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Similar Surnames to Moriarty

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

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 Moriarty.

Frequently Asked Questions About Moriarty

The surname Moriarty is of European origin. Family name of European origin
The surname Moriarty is ranked #3,564 in the United States with approximately 10,005 people bearing this name as of the 2010 US Census.
Family name of European origin. The name has European roots and has been present in the United States for generations.
According to US Census data, the Moriarty surname is distributed as: 95.8% White. This reflects the diverse heritage of Americans with this name.
To trace your Moriarty 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.

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