Welcome to the Irish Genealogical Society International (IGSI).

We are a non-profit genealogical society dedicated to assisting our members and others in the discovery of their Irish ancestry. 

Founded over 30 years ago by a small group of people interested in sharing their knowledge, IGSI has since developed into a well respected Irish genealogical society with over 1,200 members in 10 countries, and an extensive library and research facility. 

The Irish Genealogical Society International, Inc. is a Federal IRS 501c non-profit corporation.  We are located at: 1185 Concord Street North,  Suite 218,  South St. Paul, MN 55075

IGSI is proud to be members of the Federation of Genealogical Societies, The Council of Irish Genealogical Organizations and the National Genealogical Society.