A DNA test can do two genuinely useful things for an Italian family history: connect you with living relatives—sometimes cousins still in the ancestral town—and confirm the lines you have traced on paper. What it will not do is name your comune or build your family tree; the marketing implies otherwise, but for Italian ancestry the records do the building and DNA does the confirming. This guide compares the tests that matter and tells you which to buy first, depending on your goal.
Disclosure: this article contains affiliate links to MyHeritage. If you buy a DNA kit or start a trial through them, we may earn a commission at no extra cost to you. We do not earn commissions from AncestryDNA or the other companies mentioned. See our affiliate disclosure.
The one-minute answer
The best first test depends on where your relatives are. MyHeritage is the stronger choice if your living cousins are more likely to be in Italy or elsewhere in Europe—it is more international, with more testers still living there. AncestryDNA has by far the largest matching database, which gives the best chance of finding relatives in Italian-American families. MyHeritage stopped accepting DNA uploads from other companies in August 2025, so the way to fish in both pools is to take a test with each. If you want to research a single surname line, FamilyTreeDNA is the only one offering the Y-DNA and mtDNA tests that job needs.
Ready to test? Our Italian DNA hub has current links and discount windows for MyHeritage, AncestryDNA and the others, plus setup help for each kit.
What an autosomal DNA test measures
MyHeritage, AncestryDNA and 23andMe all sell the same type of test: an autosomal test, which reads markers across the chromosomes you inherit from both parents. Because you receive roughly half of each parent’s DNA, the test reaches back reliably about five to seven generations—to your fourth or fifth great-grandparents. Beyond that, the DNA you inherited from any single ancestor becomes too small to detect. That reach is excellent for confirming relationships in the 1800s, exactly the era your Italian civil records cover, but it cannot by itself prove a connection to a distant ancestor of the 1700s—for that you still need the documents.
MyHeritage — best for European matches
MyHeritage is the strongest choice if your living relatives are more likely to be in Italy or elsewhere in Europe, because its user base is more international. Its database can only be joined by taking a MyHeritage test, since it stopped accepting uploads in August 2025.
- European reach — more testers still in Italy, improving the odds of finding cousins who never emigrated.
- Chromosome browser — a segment-analysis tool Ancestry lacks.
- Theory of Family Relativity — proposes how matches connect, useful as a lead but verify against records.
MyHeritage also offers two optional extras. DNA Traits is a set of recreational reports on everyday characteristics, unlocked for a one-time fee per kit. DNA 360° is a separate kit that adds health and wellness reports to your ancestry results; it is for informational purposes only, is not a diagnostic test, and is currently sold only to adults in the United States and United Kingdom. Check MyHeritage for what is included (affiliate link).
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AncestryDNA — the biggest database
AncestryDNA’s advantage is scale, which matters more than anything else when your goal is finding relatives: the bigger the database, the more likely your unknown cousins are already in it. For Italian-American families especially, that pool is dense with relevant matches.
- Largest match database — the best odds of finding the cousin who has the photo, the story, or the name of the town.
- ThruLines and tree integration — suggests how matches connect through shared ancestors, and links to Ancestry’s trees and Italian record hints.
- Weak spot — no Y-DNA or mtDNA and no chromosome browser, so segment-level analysis must happen elsewhere.
23andMe — health focus, and a cautionary tale
23andMe pioneered consumer ancestry testing and leads in health-and-trait reporting, but for Italian genealogy it is usually the weakest of the three: no tree-building, no record integration, and a smaller matching database. You would choose it primarily for the health reports.
Worth knowing before you buy: 23andMe filed for Chapter 11 bankruptcy in 2025. After a contested auction, a nonprofit founded by its former CEO—the TTAM Research Institute—acquired its assets and completed the purchase in mid-2025, and 23andMe now operates as a nonprofit. The episode drew lawsuits over genetic-data privacy and legal scrutiny has continued into 2026. None of this makes your results wrong, but if the long-term custody of your genetic data matters to you, read the current privacy terms and know you can request deletion.
FamilyTreeDNA — for surname and lineage work
FamilyTreeDNA is the specialist. Alone among the four it offers Y-DNA testing, which follows the strict paternal line, and mtDNA, which follows the strict maternal line. Neither is the test to buy first for general ancestry, but for a focused surname project—asking whether two families sharing a name descend from a common ancestor—Y-DNA can answer what autosomal DNA cannot once you are past a few generations.
Match your test to your goal
- Relatives still in Italy or best European reach: MyHeritage (testing there directly puts you in the pool where they are), or test at Ancestry as well.
- General Italian ancestry, find cousins, grow a tree: AncestryDNA for the largest pool, then add a MyHeritage test to widen your reach.
- A specific paternal or maternal surname line: FamilyTreeDNA Y-DNA or mtDNA.
- Health and traits, with ancestry as a bonus: 23andMe—after reading the privacy note above.
The honest bottom line
DNA is a powerful confirmation tool and a way to meet living cousins, but for Italians it is the records that build and prove the tree—the free Antenati registers and centuries of parish books can document a line DNA could only hint at. Test to find relatives and to verify; rely on the documents to know. And remember that for anything formal—citizenship by descent above all—DNA carries no weight whatsoever: only certified records do.
Start with our Italian DNA hub for kit links, then learn to fold results into a documented tree in connecting DNA to your Italian records.
Getting the most from whichever test you choose
Whatever kit you buy, a few habits separate a useful result from a frustrating one. Build at least a skeleton tree—four or five generations—before your results arrive, so the matching tools have something to work with; a test with no tree attached is a fraction as useful. Keep the tree public and on the same platform you test on, because that is what lets the hinting tools propose connections. And spend your time on the match list, not the ethnicity pie chart: the percentages are the part everyone shares online and the part that matters least for genealogy, while the matches are where the family history actually lives.
Budget for patience, too. Results take a few weeks, the most useful cousins may not reply for months, and the real payoff accrues slowly as more relatives—including some still in Italy—join the databases over the years. Almost all of the major tests go on sale repeatedly through the year, so unless you are in a hurry there is rarely a reason to pay full price. Because MyHeritage no longer accepts uploads, being in both databases means buying both tests, so watch for sales on each. We flag live discount windows on the DNA hub as they appear.
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DNA as one tool among several
It helps to see DNA in proportion. For Italian genealogy it is a confirmation tool and a cousin-finder, not a tree-builder—the heavy lifting is done by the free Antenati registers, the parish books, and the destination-country records that name the comune. Used alongside that records work, a test earns its place by reconnecting you with living relatives, confirming a documented line, and occasionally pointing toward an ancestral town you could not otherwise find. Used instead of the records, it will only ever give you a pie chart and a confusing list of names. Test, by all means—then get into the registers.