Explore the Family Name Dewar

The meaning of Dewar

Scottish: 1. from Gaelic Mac an Deoraidh, ‘son of the pilgrim or sojourner’. Perhaps also an occupational name for a custodian of holy relics (which was normally a hereditary office), from Gaelic deoradh ‘pilgrim, stranger’. 2. habitational name from Dewar, a place near Dalkeith, of uncertain origin.

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

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

Based on data from the Decennial U.S. Census, the surname Dewar saw a slight fluctuation in its popularity between 2000 and 2010. The rank of this surname dropped by 2.46%, shifting from a rank of 10,900 in 2000 to 11,168 in 2010. However, despite this drop in ranking, the actual count of individuals with the Dewar surname increased by 5.71%, growing from 2,680 in 2000 to 2,833 in 2010. Consequently, the proportion of people with this surname per 100,000 population declined by 3.03% during that decade.

20002010Change
Rank#10,900#11,168-2.46%
Count2,6802,8335.71%
Proportion per 100k0.990.96-3.03%

Race and Ethnicity of people with the last name Dewar

In terms of ethnic identity, the Decennial U.S. Census data indicates some shifts between 2000 and 2010. Those identifying as White and bearing the Dewar surname decreased by 4.13%, from 81.08% in 2000 to 77.73% in 2010. In contrast, the Hispanic population with this surname saw an increase of 23.91%, while the Black population also rose by 14.26%. Interestingly, for the first time in 2010, a small percentage (2.26%) of individuals with the Dewar surname identified themselves as Asian/Pacific Islander. Meanwhile, the count of those identifying as two or more races or as American Indian and Alaskan Native was suppressed for privacy.

20002010Change
White81.08%77.73%-4.13%
Black13.25%15.14%14.26%
Hispanic2.76%3.42%23.91%
Asian/Pacific Islander0%2.26%0%
Two or More Races1.64%0%0%
American Indian and Alaskan Native0%0%0%

Dewar 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 Dewar is British & Irish, which comprises 58.6% of all ancestry found in people with the surname. The next two most common ancestries are French & German (17.1%) and Eastern European (5.2%). Additional ancestries include Scandinavian, Italian, Nigerian, Spanish & Portuguese, and Ghanaian, Liberian & Sierra Leonean.

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ANCESTRY BREAKDOWNCOMPOSITION
British & Irish58.6%
French & German17.1%
Eastern European5.2%
Other19.1%
Dewar

Possible origins of the surname Dewar

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 Dewar have recent ancestry locations all within the United Kingdom of Great Britain and Northern Ireland.

RECENT ANCESTRY LocationPercentage
Glasgow City, United Kingdom85.70%
West Midlands, United Kingdom85.70%
Greater Manchester, United Kingdom85.70%
Greater London, United Kingdom85.70%
Lancashire, United Kingdom84.90%

What Dewar 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 Dewar is R-BY2634, which is predominantly found among people with European ancestry. Haplogroup R-BY2634 is descended from haplogroup R-M343. Other common haplogroups include R-CTS241 and R-L21, which are predominantly found among people with European and European ancestry. Other surnames with similar common haplogroups are: Davies, Griffiths, Logan, Griffith, Phillips, Allan, Jones, Rees, Lloyd, Pritchard.

The most common maternal haplogroups of people with Dewar surname are: H1, T2b, H. These most commonly trace back to individuals of European ancestry.

dewarPaternal Haplogroup Origins R-M343

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 Dewar 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

Dewar

Chocolate Ice Cream

Prefers chocolate flavored ice cream over other flavors.

"Dewar" Surname 40.7%

23andMe Users 41.3%

Traits

Dewar

Misophonia

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

"Dewar" Surname 27.8%

23andMe Users 27.9%

Habits

Dewar

Sugary Drink

Drinks one or more sugary drinks per day.

"Dewar" Surname 25.9%

23andMe Users 21.1%

Wellness

Dewar

Migraine

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

"Dewar" Surname 17.6%

23andMe Users 16.4%

Are health conditions linked to the last name Dewar?

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 Dewar 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%