Explore the Family Name Janssen

The meaning of Janssen

Dutch, Flemish, North German, East Frisian, Norwegian, and Danish: variant of Jansen. This form has been particularly established in the southeastern Netherlands and adjacent Belgium, while it is rare in Norway and Denmark. The surname of Flemish and German origin is also found in the Walloon part of Belgium. Compare Janson 1 and Jansson 2. Some characteristic forenames: German Kurt, Erwin, Benno, Hans, Heinrich, Claus, Fritz, Gerhard, Gunter, Helmut, Hermann, Klaus.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Janssen has seen minor fluctuations between 2000 and 2010. In 2000, it was ranked as the 3100th most common surname, dropping slightly to 3160th place in 2010, indicating a decline of 1.94%. However, the count of individuals with the Janssen surname increased from 10,720 in 2000 to 11,423 in 2010, an increase of 6.56%. When considering the proportion per 100,000 people, the surname saw a minor decrease of 2.52%, moving from 3.97 in 2000 to 3.87 in 2010.

Proportion per 100k3.973.87-2.52%

Race and Ethnicity of people with the last name Janssen

When discussing ethnicity, the data from the Decennial U.S. Census shows that there have been some shifts within the Janssen surname's ethnic identity distribution between 2000 and 2010. The percentage of Janssens identifying as Asian/Pacific Islander rose by 64.10%, although they still represent a small fraction of all people with this surname. Similarly, those reporting two or more races increased by 43.04%, while Hispanic individuals increased by 30.86%. The number of Janssens identifying as Black doubled, though they remain a very small percentage of the total. Those identifying as American Indian and Alaskan Native increased by 10.00%. Interestingly, the largest group, those identifying as White, decreased slightly, from 96.62% to 95.33%.

Two or More Races0.79%1.13%43.04%
Asian/Pacific Islander0.39%0.64%64.1%
American Indian and Alaskan Native0.3%0.33%10%

Janssen 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 Janssen is French & German, which comprises 42.2% of all ancestry found in people with the surname. The next two most common ancestries are British & Irish (32.0%) and Scandinavian (9.7%). Additional ancestries include Eastern European, Italian, Spanish & Portuguese, Ashkenazi Jewish, and Indigenous American.

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French & German42.2%
British & Irish32.0%

Possible origins of the surname Janssen

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 Janssen have recent ancestry locations spanning a few countries, mostly in United Kingdom, and Ireland.

RECENT ANCESTRY LocationPercentage
Greater London, United Kingdom73.50%
Greater Manchester, United Kingdom73.50%
West Midlands, United Kingdom73.20%
Merseyside, United Kingdom73.20%
Glasgow City, United Kingdom72.90%

What Janssen 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 Janssen is R-M405, which is predominantly found among people with European ancestry. Haplogroup R-M405 is descended from haplogroup R-M343. Other common haplogroups include R-CTS241 and I-Z58, which are predominantly found among people with European and European ancestry. Other surnames with similar common haplogroups are: Birch, Christiansen, Hartmann, Earl, Atkinson, Read, Pedersen, Warner, Cooke, Jorgensen.

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

janssenPaternal 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 Janssen 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.



Chocolate Ice Cream

Prefers chocolate flavored ice cream over other flavors.

"Janssen" Surname 42.9%

23andMe Users 41.3%




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

"Janssen" Surname 23.6%

23andMe Users 27.9%



Sugary Drink

Drinks one or more sugary drinks per day.

"Janssen" Surname 20.0%

23andMe Users 21.1%




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

"Janssen" Surname 19.7%

23andMe Users 16.4%

Are health conditions linked to the last name Janssen?

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 Janssen 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

French & German 60.8%

23andMe Users 57.2%