Explore your paternal ancestry with Y-DNA

Follow the path of your male ancestors

Find DNA Matches

Trace the history
of your surname

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Join FREE genealogical
research projects

Trace The History

Find matches in the world's
largest Y-DNA database


Discover your direct
paternal matches

Your Y-DNA matches will share a common ancestor with you on your direct paternal line. That common ancestor can be recent (within a generation or two) or more distant (living up to a 1000 years ago or so). The tools and data gained through a Y-DNA test can help you learn more about your patrilineal family history.

  • Discover your relatives' paternal country of origin.

  • Identify paternal earliest known ancestors.

  • View and explore the Family Trees of your matches.


The world's largest
Y-DNA database

The Y chromosome passes almost unchanged from father to son. Male ancestors carried their Y-DNA line along their migrations, allowing you to trace your paternal ancestry by using our advanced Y-DNA tests and the world's largest Y-DNA database.

Special sections on the Y chromosome determine a male's Y haplogroup, revealing the origins of his ancestors as evidenced by common DNA markers.


Follow the path of your
male ancestors

Males can use Y-DNA to determine where their direct paternal ancestors came from, their locations in historic times and how they migrated throughout the world.

  • Explore your direct paternal line and geographic origins.

  • Uncover your paternal heritage going back to Africa.

  • Trace your male ancestors' ancient migration paths.

With the world's largest Y-DNA database, our advanced male-specific Y-DNA tests can be used to trace your direct and distant paternal lineage.


Our male-specific Y-DNA tests check for specific markers on the Y chromosome. 37 markers is a good place to start and can confirm close relationships. For explorers, check out Big Y-700!

Important: Single tests are applicable to one individual per purchase only



Examines 37 short tandem repeats (STRs) on
the Y chromosome




Examines 111 short tandem repeats (STRs) on
the Y chromosome


Big Y-700*


Examines 700 short tandem repeats and over 200K SNPs on the Y chromosome

*Big Y-700 does not include the raw data file. The option to purchase is available once you get your results.

Frequently Asked Questions

What is Y-DNA?

Y-DNA is what we call the sex chromosome “Y” that is passed from a father to his sons only, women do not receive a Y chromosome. Testing the Y chromosome allows for investigation into a male's paternal family line and can help identify surname lines, living relatives whose Y chromosome is similar to yours, and ancient migration routes your paternal ancestors may have taken.

What is a Haplogroup?

Every male individual who takes one of our Y-DNA tests will also receive their Y-DNA haplogroup. When humans left Africa tens of thousands of years ago, they departed in small groups that migrated into different parts of the world. Over many generations, each group developed distinct mutations allowing us to identify one from the other. We call these groups of mutations haplogroups, and they can tell us which migratory routes our paternal ancestors traveled.

What does SNP stand for?

Single nucleotide polymorphisms, frequently called SNPs (pronounced “snips”), are the most common type of genetic variations. Each SNP is a mutation or new branch on the tree. The number of SNPs on which people match within a database can be used to tell how closely related they are.

What is a Marker or STR?

A marker is what we test in our basic Y-DNA tests. These markers are also referred to as STRs (Short Tandem Repeats) which are a series of repeating nucleotides (A, T, G, C). For example: GACTACTACTACTGG - the STR consists of the three repeated CTA segments. Y-DNA tests look for matching markers or “STRs” between two men, if they match, which would indicate a genetic relationship.

Which test should I buy?

If you are looking to begin Y-DNA testing, the Y-37 Marker test allows you to become familiar with Y-DNA results. The Y-111 test is the most beneficial for joining our free Group Projects or for those looking to confirm Y-chromosome matching at our highest level between two living men. The difference between the Y-37 and Y-111 tests is that we analyze more markers (STRs) with the Y-111 test, which allows for more refined results including matches. The Big Y-700 is for explorer users, it provides over 200K SNPs and additional STRs; however, these markers do not provide more refined matching.

I have questions about my Y-DNA test results. Where should I go?

You can either contact one of our Customer Support Representatives or look through our Y-DNA pages in our Learning Center to learn all about Y-DNA testing!