If you live in Czechia or Slovakia, or want a relative there to test, a few practical questions arise. Which companies ship to you? Is it legal? Who sees the data? This guide answers what can be verified and says plainly where we could not find an official answer, because we found no Czech or Slovak law written specifically for ancestry kits. It is not legal advice. We checked these details in October 2026, and company features, database sizes and prices change often, so confirm them before you buy.
Which companies sell ancestry tests there
A 2026 survey by genetic genealogist Roberta Estes lists MyHeritage, AncestryDNA, 23andMe and FamilyTreeDNA as selling tests in Slovakia, and an earlier list also shows Living DNA as selling in both Czech Republic and Slovakia. Ancestry’s own page says AncestryDNA is available in 119 countries, including Czechia and Slovakia, with over 28 million DNA tests in its database. Footnotes in the survey mark limits, such as for 23andMe and MyHeritage in some countries, so check each company’s current page and buy through the store for the country where the kit will be used.
- MyHeritage. Our primary recommended platform. See our review.
- AncestryDNA. The largest database, with no uploads accepted.
- 23andMe. It lists Czech Republic and Slovakia regions in its Ancestry Service, and is now owned by the nonprofit TTAM Research Institute.
- FamilyTreeDNA. Autosomal, Y-DNA and mitochondrial tests, with free transfers.
- Living DNA. Listed as available in an earlier survey.
All of these kits work by mail: you order online, collect a saliva sample at home and send it back. We did not find a consumer ancestry test that is taken in person in Czechia or Slovakia.
What the law says
What we found. We found no Czech or Slovak statute or regulator statement that addresses ancestry-only kits specifically. The sources we found describe the kits as on sale in both countries, but we cannot tell you that nothing restricts them. If this matters for your plans, check the current information from the national authorities and the company’s terms for customers in your country.
- Health genetic tests. The Czech Republic signed the Council of Europe’s Additional Protocol on genetic testing for health purposes, which sets principles on the quality of genetic services, information and consent and which deals with directly accessible genetic tests. A signature is not the same as a binding national law, and the protocol concerns health tests.
- Data protection. The Czech Data Protection Act implementing the GDPR came into force on 24 April 2019, and the national authority is the Office for Personal Data Protection. We did not find a Slovak equivalent in our sources, though Slovakia is also bound by the GDPR as an EU member.
- Paternity and relationship tests. These follow different rules from ancestry kits. Czech courts can order DNA tests in paternity proceedings, according to a Czech law firm, and laboratories such as easyDNA have offered paternity and relationship tests in the Czech Republic and Slovakia. A genealogy company’s result is not a substitute.
Privacy under the GDPR
The Czech Republic and Slovakia are members of the European Union, so the General Data Protection Regulation applies. As the European Consumer Centres explain, it treats genetic data as a special category, gives consumers rights to information and erasure, and binds laboratories even in third countries that offer DNA tests to European consumers. Practical steps:
- Read the terms on research use and on sharing with third parties before you test.
- Check how each company handles law enforcement requests, because policies differ.
- Know how to delete your data and results. When 23andMe went through bankruptcy in 2025, about 1.9 million customers were reported to have deleted their accounts.
- Remember that your results also reveal information about your relatives.
If you live elsewhere
- Test where you live. You do not need to test in Czechia or Slovakia to match relatives there.
- If a relative in Central Europe might test, explain what the company does with the data and let them decide.
- If you live in Czechia or Slovakia, order a kit from a company that ships to you, mail the sample back and keep the privacy terms.
Talking with relatives about testing
A DNA test also tells the company, and any matches, something about your relatives. Before you order for a parent or an aunt, explain who will see the results, whether they will be visible to matches and what the company’s terms allow. Offer to let them review matches before you contact anyone.
DNA and citizenship
A DNA result is not among the evidence the Czech and Slovak embassy pages describe. Citizenship rests on documents. See the citizenship guide.
What to do next
- Choose a test using our comparison.
- Check shipping and terms for your country.
- Read the privacy policy and decide what to share.
- Test the oldest relatives first.
- Use the results with the records. See connecting matches to Czech and Slovak records.
Illustrative composite (not a real family): A reader in Bratislava wants her father, who lives in Chicago, to test. She checks that the company ships to the United States, reads its privacy terms with him and orders the kit through the US store. He mails the sample from home, and she then reviews the matches with him.
Common mistakes
- Assuming a kit bought in one country works in another. Check the store for the country where it will be used.
- Assuming a signed protocol is a national law. It concerns health tests.
- Skipping the terms. Data sharing and research consent vary.
- Expecting in-person testing. The consumer companies work by mail.
- Using DNA for citizenship. It is documents that count.
Continue with the best DNA test for Czech and Slovak ancestry and how to find cousins with DNA, and browse DNA & Tools. Sources include a 2026 survey of DNA test availability, an earlier availability list, Ancestry’s list of countries, the European Consumer Centres’ guide to DNA tests, the Council of Europe on the genetic testing protocol and a guide to the Czech GDPR implementation, a Czech law firm on paternity testing and an easyDNA announcement of Czech and Slovak services.
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