Explore the Family Name Fitzsimons

The meaning of Fitzsimons

Irish: variant of Fitzsimmons. Some characteristic forenames: Irish Brendan, Caitlin, Niamh.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Fitzsimons in the United States?

Based on the Decennial U.S. Census data, the popularity of the surname Fitzsimons saw a slight decrease between 2000 and 2010. In 2000, Fitzsimons ranked as the 15,364th most popular surname, but by 2010, it had slipped to the 15,719th spot, marking a 2.31% decrease in rank. However, the actual count of individuals bearing this surname increased by 5.76%, from 1,754 in 2000 to 1,855 in 2010. This indicates that despite a decrease in rank, the number of people with the Fitzsimons surname grew within this decade.

20002010Change
Rank#15,364#15,719-2.31%
Count1,7541,8555.76%
Proportion per 100k0.650.63-3.08%

Race and Ethnicity of people with the last name Fitzsimons

In regards to ethnicity, the Decennial U.S. Census data shows notable shifts between 2000 and 2010 for the Fitzsimons surname. The proportion of individuals identifying as White decreased slightly by 1.77%, from 96.98% in 2000 to 95.26% in 2010. Meanwhile, those identifying as Hispanic experienced a substantial increase of 118.32%, growing from 1.31% in 2000 to 2.86% in 2010. There was also a noticeable increase in the Asian/Pacific Islander segment, which rose by 73.53%, albeit this group still remains a small proportion overall. Conversely, the percentage of individuals identifying as two or more races saw a decrease of 32.99%. As for the Black community, there was a moderate increase of 62.50%. The American Indian and Alaskan Native category remained consistent at 0.00% for both years.

20002010Change
White96.98%95.26%-1.77%
Hispanic1.31%2.86%118.32%
Two or More Races0.97%0.65%-32.99%
Black0.4%0.65%62.5%
Asian/Pacific Islander0.34%0.59%73.53%
American Indian and Alaskan Native0%0%0%

Fitzsimons ancestry composition

23andMe computes an ancestry breakdown for each customer. People may have ancestry from just one population or they may have ancestry from several populations. The most commonly-observed ancestry found in people with the surname Fitzsimons is British & Irish, which comprises 65.5% of all ancestry found in people with the surname. The next two most common ancestries are French & German (11.6%) and Italian (5.8%). Additional ancestries include Eastern European, Spanish & Portuguese, Scandinavian, Indigenous American, and Ashkenazi Jewish.

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ANCESTRY BREAKDOWNCOMPOSITION
British & Irish65.5%
French & German11.6%
Italian5.8%
Other17.2%
Fitzsimons

Possible origins of the surname Fitzsimons

Your DNA provides clues about where your recent ancestors may have lived. Having many distant relatives in the same location suggests that you may all share common ancestry there. Locations with many distant relatives can also be places where people have migrated recently, such as large cities. If a large number of individuals who share your surname have distant relatives in a specific area, it could indicate a connection between your surname and that location, stemming from either recent ancestral ties or migration.

Based on 23andMe data, people with last name Fitzsimons have recent ancestry locations in the United Kingdom of Great Britain and Northern Ireland and Ireland.

RECENT ANCESTRY LocationPercentage
Edinburgh, United Kingdom85.30%
West Yorkshire, United Kingdom85.30%
West Midlands, United Kingdom85.30%
Tyne And Wear, United Kingdom85.30%
Glasgow City, United Kingdom85.30%

What Fitzsimons haplogroups can tell you

Haplogroups are genetic population groups that share a common ancestor on either your paternal or maternal line. These paternal and maternal haplogroups shed light on your genetic ancestry and help tell the story of your family.

The top paternal haplogroup of people with the surname Fitzsimons is O-F2415, which is predominantly found among people with East Asian & Indigenous American ancestry. Haplogroup O-F2415 is descended from haplogroup O-M1359. Other common haplogroups include E-M183 and O-F2859, which are predominantly found among people with European and East Asian & Indigenous American ancestry.

The most common maternal haplogroups of people with Fitzsimons surname are: H1, K1a, H. These most commonly trace back to individuals of European ancestry.

fitzsimonsPaternal Haplogroup Origins O-M1359
Paternal Haplo Image

Your paternal lineage may be linked to the Cham

One of the many populations harboring members of haplogroup O1b1a1a1a1 is the Cham ethnic group, a group of people who speak Austronesian languages in Mainland Southeast Asia. Austronesian languages make up a language family that is extremely large and widespread, comprising over 350 million people on islands such as Madagascar, Easter Island, and many others. However, Austronesian languages are less common on mainland Asia, with a notable exception being the Chamic language. Research suggests that ancestors of the Cham people migrated from Southeast Asian islands to the mainland around the year 500 BCE, and that early Cham populations quickly began mixing with indigenous southern Vietnamese populations. As a result, the Chamic language now has words that were borrowed from languages spoken by indigenous Vietnamese people. It is likely that an ancestral Kinh population was one of the populations that mixed with the Cham people shortly after their migration to mainland Asia.

Your maternal lineage may be linked to Marie Antoinette

Because it is so dominant in the general European population, haplogroup H also appears quite frequently in the continent's royal houses. Marie Antoinette, an Austrian Hapsburg who married into the French royal family, inherited the haplogroup from her maternal ancestors. So did Prince Philip, Duke of Edinburgh, whose recorded genealogy traces his female line to Bavaria. Scientists also discovered that famed 16th century astronomer Nicolaus Copernicus traced his maternal lineages to haplogroup H.

Maternal Haplo Image

What do people with the surname Fitzsimons have in common?

Spoiler alert: it's complicated. People with the same last name are usually no more genetically similar than a randomly sampled group of people from the same population. That said, people with the same surname are more likely to have similar ancestries than randomly sampled individuals. The reason is the tendency of people with similar cultural or geographical backgrounds to preferentially mate with one another. That's why people who share a surname may be more likely to share traits and tendencies in common than people within the general population. Check out the percentages below to see the prevalences of tastes, habits, and traits of people with your surname compared with prevalences among 23andMe users.

Preferences

Fitzsimons

Chocolate Ice Cream

Prefers chocolate flavored ice cream over other flavors.

"Fitzsimons" Surname 47.1%

23andMe Users 41.3%

Traits

Fitzsimons

Misophonia

When sounds made by others, like the sound of chewing or yawning, provoke strong emotional reactions in an individual.

"Fitzsimons" Surname 36.8%

23andMe Users 27.9%

Habits

Fitzsimons

Vitamin Use

Takes vitamins on a regular basis.

"Fitzsimons" Surname 40.0%

23andMe Users 45.5%

Wellness

Fitzsimons

Migraine

A severe headache characterized by intense pain, sensitivity to light and sound, and often accompanied by nausea and vomiting.

"Fitzsimons" Surname 24.1%

23andMe Users 16.4%

Are health conditions linked to the last name Fitzsimons?

The short answer is that, if there is an association between surname and health, it's usually more about your ancestry than your name. Individuals with a given surname are no more genetically similar than the general population but often have similar ancestries. The populations of people associated with those shared ancestries often have sets of genetic variations, also known as alleles, in common. Some of those alleles are associated with a greater likelihood of developing certain diseases.

Disease variant frequency by ancestry

Disease allele frequencies in populations associated with the surname Fitzsimons are shown below. Important Note: not everyone with a disease allele will develop these health condition

Age-Related Macular Degeneration

Y402H variant

Age-related macular degeneration (AMD) is the most common cause of irreversible vision loss among older adults. The disease results in damage to the central part of the retina (the macula), impairing vision needed for reading, driving, or even recognizing faces. The 23andMe Health + Ancestry DNA test includes the two most common variants associated with an increased risk of developing the condition: the Y402H variant in the CFH gene and the A69S variant in the ARMS2 gene. Learn more about Age-Related Macular Degeneration

British & Irish 62.1%

23andMe Users 57.2%