The most important factor for DNA accuracy is the number of reference samples in a particular region. AncestryDNA has the largest reference sample in the British region (2388). I highly recommend buying their DNA test kit, who knows their ancestry is coming from this region.
Their test can provide an accurate break down of your British regional ancestry and will give you a detailed breakdown of the ethnicity from around Great Britain. Additionally, you can use their DNA Relatives feature to connect with family members who have also taken the same test. This is a great way to learn about your genealogy and personal history.
Family Tree DNA is another great choice for British ancestry testing. They feature a variety of tests, from Y-DNA (for males only) to mitochondrial (mtDNA), which looks at your maternal line. Additionally, the Family Finder test can give you information about distant relatives and even establish connections between families through shared DNA segments.
This is the most accurate DNA test for your needs:
According to my ethnicity calculation (based on Principal Component Analysis), my family tree research, and database size investigation, currently (2023), the best DNA testing company is:
British ancestry research
The UK is home to a rich and diverse history, which makes it an ideal destination for those interested in exploring their British ancestry. There are numerous websites dedicated to helping individuals research and trace their lineage back through the centuries. Here are some of the best sites that can help you get started on your journey of British ancestry research:
1. Family Search: This free website run by the Church of Jesus Christ of Latter-day Saints allows individuals to search through an extensive database of records and resources related to British genealogy.
2. Find My Past: With over 1 billion records from across England, Scotland, Ireland and Wales, this subscription service provides access to an extensive range of databases and records.
3. Ancestry UK: Another subscription service, Ancestry UK gives you access to more than 1 billion historical records that span the full spectrum of British genealogy research.
4. The National Archives: This government website contains a wealth of information about Britain’s past and can be a great place to begin your research.
5. British Origins: This subscription service offers access to records and resources related to British ancestry, including parish records, censuses, wills and probate registers.
6. Genes Reunited: This popular genealogy website offers a range of tools and resources that can help you research your British ancestry.
7. FreeBMD: This free website offers access to an extensive database of birth, marriage and death records from across the UK.
8. TheGenealogist: Another subscription service, TheGenealogist provides access to a wide range of historical documents that can help you with your research.
British DNA origins
Origins can also be traced back to multiple locations in Europe. The most common British origins are from the Nordic and Germanic regions, as well as Iberia and the British Isles. There have also been small populations of French, Dutch, and Greek people who have settled in Britain throughout the centuries.
Various studies suggest that ancient Britons were more closely related to Central European populations than their Celtic neighbors in the south and west. This was due to a series of migrations that took place during the Iron Age from mainland Europe bringing with them Bronze Age technology and farming techniques.
In recent years, genetic studies have provided us with an even clearer picture of British ancestry, revealing that modern-day Britons possess a mix of both Celtic and Anglo-Saxon heritage. It has also been found that British populations have experienced multiple waves of immigration over the centuries, with people from across Europe and beyond traveling to Britain.
The genetic makeup of the British population is unique and reflects a diverse range of origins. This diversity can be seen in the different languages spoken throughout the country, as well as in the regional cultures and dialects. British DNA origins provide a fascinating insight into our shared history of immigration and cultural exchange. By understanding our ancestry we can gain a better insight into our own identity and place within the world.
By researching our genetic information we are also able to create maps of migration patterns and identify patterns of movement as our ancestors settled in different parts of the country. This helps to inform us about our shared heritage and reminds us that each one of us has a unique story to tell.
Most common Y and mt DNA haplogroup in the British Isles
The most common Y-DNA haplogroups in the British Isles are R1b and I. R1b is believed to have arrived around 4,000-6,000 years ago from Central Europe and has become the dominant paternal lineage in western Europe. It is especially frequent in Ireland, Wales, Scotland and Atlantic coastal regions of Spain and France.
The second most common Y-DNA haplogroup in the British Isles is I, which was present since pre-historic times and is associated with a diverse range of ancient cultures. It can be found throughout the British Isles but is especially frequent in Scotland, Scandinavia and northern Europe.
On the other hand, the most common mtDNA haplogroups in the British Isles are H and U. Haplogroup H is the most frequent mitochondrial DNA (mtDNA) haplogroup in Europe, comprising more than 40% of European populations. It is especially frequent in western and southern Europe, including Ireland and Great Britain.
Haplogroup U is associated with the dispersal of early modern humans from Africa to Eurasia and is found in many populations all over Europe. It is especially frequent in northern, eastern and central Europe, including Great Britain and Ireland.

Throughout his career, Andras has developed a deep understanding of DNA and its applications in genealogy and genetic testing. He has helped thousands of individuals uncover their ancestral heritage, using cutting-edge DNA analysis to trace family lineages and reveal connections across generations.