A DNA test cannot name your ancestor’s commune, but it can do something paper records cannot: connect you to living cousins who share your French roots, confirm family lines you have documented, and break through brick walls. This guide compares the major tests from the point of view of someone researching French ancestry.
Our recommendation: start with MyHeritage
For French ancestry, we recommend MyHeritage first. It owns Filae, so its French civil and church records sit next to your DNA matches, and it is reported to hold one of the largest pools of French test-takers. It is strong across Europe, accepts free uploads of DNA data from other companies, and gives you a chromosome browser and match-clustering tools that make matches easier to interpret.
How the main DNA tests compare
| Test | Best for | Database (approx.) | Main caveat |
|---|---|---|---|
| MyHeritage DNA | European and French roots; records plus DNA; free uploads | About 9.6 million matching kits | Smaller than Ancestry overall |
| AncestryDNA | Finding North American cousins; large trees | About 27–30 million kits | No chromosome browser; best features need a subscription |
| FamilyTreeDNA | Y-DNA and mtDNA tests for paternal and maternal lines | Smaller autosomal database | Targeted tests, not a starting point for most people |
| 23andMe | Haplogroups and optional health reports | Roughly 14 million kits | Weak for genealogy; ownership changed after 2025 bankruptcy |
Figures are approximate and change often; check each company’s own site before you buy, and read its privacy policy so you understand how your genetic data may be stored or shared.
What DNA can and cannot tell you about French roots
- Ethnicity estimates are broad. “France” results overlap with neighboring regions, so do not expect a result to name a département.
- Cousins in France are fewer than you might expect. Because testing is illegal there, French matches are thinner than in other countries, although well over 100,000 French people are estimated to order kits from abroad each year.
- Matches are clues, not proof. Confirm any shared ancestor in the records. See our French genealogy records hub.
Privacy and your DNA data
Genetic data is permanent, so think before you test. Read the company’s privacy policy, decide whether to opt in to research, and learn how to download your raw data and delete your account. The 2024 breach and 2025 bankruptcy at 23andMe were a reminder that ownership and policies can change. None of this should stop you from testing, but going in informed is simply good practice.
Next steps
- Read the full comparison: best DNA test for French ancestry.
- Build your tree first with the French Ancestry Starter Kit.
- If you hope to prove French nationality, see the citizenship guide.
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