Explore the Family Name Knox

The meaning of Knox

1. Scottish and English (Northumberland and Durham): from a genitive or plural form of Old English cnocc ‘round-topped hill’, hence a topographic name for someone who lived on a hilltop, or a habitational name from any of the places in Scotland and northern England named with this element, now spelled Knock, in particular one in Renfrewshire. 2. Scottish: habitational name from any of the places in Scotland named with Gaelic cnoc ‘hill’, for example Knock in Renfrewshire. It is not possibly to disentangle this from the surname derived from the English etymon mentioned in 1 above. 3. Americanized form of one or more similar (like-sounding) Jewish (eastern Ashkenazic) surnames. History: A Scottish family of this name (see 2 above) can trace their descent from Adam, a son of Uchtred, who was granted lands at Knock in Renfrewshire in the 13th century.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Knox has seen some fluctuations from 2000 to 2010. In the year 2000, Knox was ranked 724th most common surname in the United States, but by 2010 it had dropped to 769th place, a decrease of 6.22%. Despite its drop in rank, the actual count of individuals with the Knox surname increased from 42,937 to 44,742 over this decade, marking an increase of 4.2%. The proportion of the Knox surname per 100,000 people decreased slightly from 15.92 to 15.17 during these years.

20002010Change
Rank#724#769-6.22%
Count42,93744,7424.2%
Proportion per 100k15.9215.17-4.71%

Race and Ethnicity of people with the last name Knox

In terms of ethnicity, the data from the Decennial U.S. Census indicates that there is a diverse range of ethnic identities associated with the Knox surname. Between 2000 and 2010, the largest ethnic group within the Knox surname were White, though this group saw a slight decrease from 65.71% to 63.40%. The second-largest group was Black, which remained relatively stable at around 30%. Notably, other ethnic groups such as Hispanic, Asian/Pacific Islander, and those identifying with two or more races saw significant increases. The Hispanic representation nearly doubled from 1.40% to 2.31%, while the Asian/Pacific Islander group rose from 0.37% to 0.49%. Those identifying with two or more races also saw a sharp increase from 1.62% to 2.49%.

20002010Change
White65.71%63.4%-3.52%
Black30.25%30.58%1.09%
Two or More Races1.62%2.49%53.7%
Hispanic1.4%2.31%65%
American Indian and Alaskan Native0.65%0.74%13.85%
Asian/Pacific Islander0.37%0.49%32.43%

Knox 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 Knox is British & Irish, which comprises 51.2% of all ancestry found in people with the surname. The next two most common ancestries are French & German (21.5%) and Eastern European (4.2%). Additional ancestries include Nigerian, Scandinavian, Italian, Ghanaian, Liberian & Sierra Leonean, and Spanish & Portuguese.

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ANCESTRY BREAKDOWNCOMPOSITION
British & Irish51.2%
French & German21.5%
Eastern European4.2%
Other23.2%
Knox

Possible origins of the surname Knox

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 Knox have recent ancestry locations in the United Kingdom of Great Britain and Northern Ireland and Ireland.

RECENT ANCESTRY LocationPercentage
Greater Manchester, United Kingdom82.50%
Greater London, United Kingdom82.50%
Glasgow City, United Kingdom82.10%
Merseyside, United Kingdom81.90%
West Midlands, United Kingdom81.40%

What Knox 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 Knox is R-S5520, which is predominantly found among people with European ancestry. Haplogroup R-S5520 is descended from haplogroup R-M343. Other common haplogroups include R-M405 and T-CTS8862, which are predominantly found among people with European and European ancestry. Other surnames with similar common haplogroups are: Mcmillan, Fine, Mcmullen, Diehl, Macmillan, Mccallum, Smith, Atkinson, Warner, Geiger.

The most common maternal haplogroups of people with Knox surname are: H1, H3, H. These most commonly trace back to individuals of European ancestry.

knoxPaternal Haplogroup Origins R-M343
Paternal Haplo Image

Your paternal lineage may be linked to King Louis XVI

The rule of France by men of the House of Bourbon began with King Henri IV in 1589 C.E. and continued until the beheading of his direct paternal descendant King Louis XVI in 1793. Several years ago, researchers analyzed a mummified head and a blood-soaked cloth that they believed might belong to the two kings, and concluded that the royal paternal line belonged to haplogroup G. In a more recent study, however, a different set of researchers tested three living men who are direct descendants of the Bourbon kings. Their efforts revealed that the male lineage of the House of Bourbon is actually a branch of haplogroup R-M405.

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 Knox 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

Knox

Chocolate Ice Cream

Prefers chocolate flavored ice cream over other flavors.

"Knox" Surname 43.1%

23andMe Users 41.3%

Traits

Knox

Misophonia

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

"Knox" Surname 33.6%

23andMe Users 27.9%

Habits

Knox

Sugary Drink

Drinks one or more sugary drinks per day.

"Knox" Surname 20.8%

23andMe Users 21.1%

Wellness

Knox

Migraine

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

"Knox" Surname 19.7%

23andMe Users 16.4%

Are health conditions linked to the last name Knox?

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 Knox 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%