The Genealogical Society of Ireland (Irish: Cumann Geinealais na hÉireann) is a voluntary non-governmental organisation promoting the study of genealogy, heraldry, vexillology and social history in Ireland and amongst the Irish diaspora as open access educational leisure pursuits available to all.

Founded in 1990, the society has charitable status in Ireland and it is incorporated under the Companies Acts.

The society is also a nominating body for the Cultural and Educational Panel for Seanad Éireann.

The current cathaoirleach (chairperson) is Gerry Hayden,[1][failed verification] who was elected in March 2018.

The activities of the society include two open meetings each month; the publication of a monthly newsletter, biannual journal and other occasional publications; the operation of an archive at the DLR Leisure Centre, Loughlinstown, County Dublin.