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Haplogroup I YDNA M170+

  • 996 members

About us

The Y-DNA Haplogroup I Project seeks to enroll members who are interested in finding others searching for their paternal origins through the comparison of haplotypes and geographical origins.

There are several branches of Haplogroup I and there are projects at FTDNA covering all the branches. But it can be difficult to figure out which branch of Haplogroup I you belong to. We have arranged our Y-DNA Results Classic and Colorized pages to correspond to the following projects:

People in the several I1 categories are welcome to join the large "I1 yDNA Haplogroup" project:

People placed in the I2* section on our Results page are welcome to join the "I2*, New ISOGG I2b," Project:

People in the I2a section should join the "I2a Y-Haplogroup" project:

People in the I2b1 section are welcome to join the "I-M223 Y-Haplogroup" Project:

People in the I2b2 section are welcome to join the "I2a2b-L38" project:

To join one of these projects (or this project), click on the link above, and at the project's website, click "Join Request" in the blue bar across the top of the page.  Or you may first login to your FTDNA personal page with your kit number and password, then click on Projects Join. Scroll down to Y-DNA Haplogroup Projects and click on the letter I to see a list. Look for the name of the project as written above (example: "I-M223 Y-Haplogroup").

Especially for people in I2, the names of the different categories can be confusing because they change with new discoveries. For example the I-L38 group is called I2b2 by FTDNA but it's called I2a2b in the most up to date tree at And in the I2b2 section of our Results page here, you can see results labelled I, I2, and I2b2. They are all I2b2 (or I2a2b according to ISOGG), but they haven't all done the SNP tests to prove this--but we are confident that they are I2b2 based on their 12, 25, 37, 67 or 111 marker results.

We do not recommend Deep Clade tests, but there may be other SNPs worth testing. People called I, I2, I2b etc. who are unsure about their specific haplogroup can contact co-administrator Bernie Cullen at