Explore the Family Name Loo

The meaning of Loo

1. North German and Dutch: topographic name for someone living near a wood (Dutch loo ‘wood’, Middle Low German lo, loge), or a habitational name from any of the places called Lo or Loh, named with this word. 2. Chinese: variant Romanization of the surnames 盧, 蘆, 魯, 路, 陸 and 呂. See Lu 1–6. 3. Chinese: variant Romanization of the surname 羅, see Luo 1. 4. Chinese: variant Romanization of the surnames 勞 and 老, see Lao 1 and 2. Some characteristic forenames: Chinese Sing, Ying, Wing, Ming, Siu, Boon, Bor, Chih-Chung, Chuan, Chun, Dong, Eng.

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

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

Based on data from the Decennial U.S. Census, the surname Loo rose in popularity between 2000 and 2010. In the year 2000, it was ranked 9,263 most popular surname, but by 2010, it had climbed to the 8,977th position, marking a change of 3.09%. Similarly, the count of people with this surname increased from 3,237 in 2000 to 3,645 in 2010, indicating a significant growth of 12.6%. The proportion of people named Loo per 100k also saw an uptick, increasing by 3.33% from 1.2 in 2000 to 1.24 in 2010.

20002010Change
Rank#9,263#8,9773.09%
Count3,2373,64512.6%
Proportion per 100k1.21.243.33%

Race and Ethnicity of people with the last name Loo

The Decennial U.S. Census also provides information about the ethnic identity associated with the surname Loo. In 2000, 75.97% of individuals with this surname identified as Asian/Pacific Islander, a number that slightly decreased to 68.09% by 2010. There was also a notable increase in the percentage identifying as two or more races, which spiked from 6.64% to 11.19% during the same period. Hispanic representation amongst those with the surname Loo also grew by 36.24%, from 8.50% to 11.58%. Meanwhile, the percentage of White individuals remained constant at 8.53%, while Black representation emerged at 0.60% in 2010. American Indian and Alaskan Native representation remained suppressed for privacy considerations.

20002010Change
Asian/Pacific Islander75.97%68.09%-10.37%
Hispanic8.5%11.58%36.24%
Two or More Races6.64%11.19%68.52%
White8.53%8.53%0%
Black0%0.6%0%
American Indian and Alaskan Native0%0%0%

Loo 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 Loo is Chinese, which comprises 56.4% of all ancestry found in people with the surname. The next two most common ancestries are British & Irish (8.8%) and Japanese (6.4%). Additional ancestries include French & German, Chinese Dai, Spanish & Portuguese, Vietnamese, and Filipino & Austronesian.

Ready to learn more about your ancestry? Get the most comprehensive ancestry breakdown on the market by taking our DNA test. Shop 23andMe

ANCESTRY BREAKDOWNCOMPOSITION
Chinese56.4%
British & Irish8.8%
Japanese6.4%
Other28.4%
Loo

Possible origins of the surname Loo

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 Loo have recent ancestry locations all within China.

RECENT ANCESTRY LocationPercentage
Guangdong, China69.80%
Fujian, China63.20%
Jiangsu, China63.20%
Zhejiang, China63.20%
Shandong, China61.30%

What Loo 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 Loo is O-F2758, which is predominantly found among people with East Asian & Indigenous American ancestry. Haplogroup O-F2758 is descended from haplogroup O-M1359. Other common haplogroups include O-M307.1 and O-F11, which are predominantly found among people with East Asian & Indigenous American and East Asian & Indigenous American ancestry. Other surnames with similar common haplogroups are: Bui, Ta, Dinh, Hoang, Eng, Thai, Dao, Do, Phan, Van.

The most common maternal haplogroups of people with Loo surname are: M, M7b_c_d_e, D4. These most commonly trace back to individuals of East Asian & Indigenous American and European ancestry.

looPaternal 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 the ancient people of the Indian subcontinent

While Haplogroup M is widespread throughout South and East Asia, it is more diverse on the Indian sub-continent than anywhere else in the world. The high degree of diversity of M in India is likely tied to its ancient arrival here nearly 50,000 years ago. In addition to M2, which is found throughout the subcontinent, there are dozens of haplogroups branching off of M that exist in India. These branches are often connected to specific regions, tribes, or ethnic groups. For example, haplogroup M18 is found among the Oraon peoples of eastern India and Bangladesh, while haplogroup M41 is common among the Pardhan speakers of eastern India, and haplogroup M31a can be found on the Andaman Islands, just off the southeast coast of India.

Maternal Haplo Image

What do people with the surname Loo 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

Loo

Chocolate Ice Cream

Prefers chocolate flavored ice cream over other flavors.

"Loo" Surname 36.1%

23andMe Users 41.3%

Traits

Loo

Cheek Dimples

Small indentations that appear on the cheeks when a person smiles.

"Loo" Surname 51.7%

23andMe Users 37.6%

Habits

Loo

Sugary Drink

Drinks one or more sugary drinks per day.

"Loo" Surname 17.1%

23andMe Users 21.1%

Wellness

Loo

Migraine

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

"Loo" Surname 15.8%

23andMe Users 16.4%

Are health conditions linked to the last name Loo?

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 Loo are shown below. Important Note: not everyone with a disease allele will develop these health condition

Late-Onset Alzheimer's Disease

ε4 variant

Alzheimer's disease is characterized by memory loss, cognitive decline, and personality changes. Late-onset Alzheimer's disease is the most common form of Alzheimer's disease, developing after age 65. Many factors, including genetics, can influence a person's chances of developing the condition. The 23andMe Health + Ancestry DNA test includes the most common genetic variant associated with late-onset Alzheimer's disease: the ε4 variant in the APOE gene. Learn more about Late-Onset Alzheimer's Disease

Chinese 18.2%

23andMe Users 25.5%