Ireland yDNA

  • 8865 members

About us

The Ireland Y-DNA Project welcomes males who have done or who intend to do a yDNA test through Family Tree DNA and who also have Irish ancestry on their own paternal line. This includes National Genographic Project (Geno 2.0) participants as well.

To become a member of the Ireland yDNA Project you need to have at least one yDNA test which is done through Family Tree DNA (FTDNA) or transferable to FTDNA from another company.

Documented evidence of a paternal Irish ancestry in a genealogical time frame (~500 years) or a paternal Irish surname which has an origin in Ireland within the past 1000 years (when many Irish surnames began) or close matches at 67 markers with people who have paternal Irish ancestry is a pre-requisite for membership.

Very many Irish Surnames now have their own surname project where you will find more details relating to a specific surname. We do ask you to check also to see if there is a surname project for your surname and if so, we ask you join it as well. Perhaps, you would consider setting up a surname project for your surname if none exists?

We also suggest you join an appropriate y-haplogroup project.

Link to Alex Williamson's Big Y chart: Big Y Tree (R-L21) [updated Sept. 2017]