Dysert O`Dea Clan – Providing a focal point for members of the Dysert O'Dea Clan around the world – The Official Web Site of the Dysert O`Dea Clan

Countdown to the 12th International O’Dea Clan Gathering
13 to 15 June 2025

If your name is O’Dea, O’Day, O’Dee, Dea, Day or Dee, then you are a member of Clan Uí Deághaidh and this is your Clan Website! A hundred thousand welcomes to you and have a grand time exploring our Website.

Special News

The Dysert O’Dea Clan is a Registered Member of the Clans of Ireland

The 12th International O’Dea Clan Gathering – Save the Date

Clan Association Job Descriptions

Shane O’Dea Inaugurated as Taoiseach (Clan Chieftain)

Kevin O’Day elected as Tanaiste (Chieftain Elect)

A Message from the Dysert O’Dea Castle Committee

Photos from the 11th International Clan Gathering held in Ireland in July 2022

Videos from the 11th International Clan Gathering held in Ireland in July 2022

Donations to the Dysert O’Dea Clan Association

The O’Dea Clan is a Benefactor of the Clans of Ireland

New Branding Adopted by the O’Dea Clan

Presentation of the Inaugural Clans of Ireland Historical Site Plaque to the O’Dea Clan

Dysert O’Dea Castle Receives Historical Site Status on 700th Anniversary of Battle

General News

Presentations from the Clan Reunion held in Adelaide in April 2017 are Now Available

Announcements

Enhancements to the O’Dea Clan Website

Clan Events

Presentations from the Clan Reunion held at Niagara Falls in July 2016 are Now Available

Announcements

How to access the O’Dea Clan Website

Announcements

Catholic Parish Registers now Online at the National Library of Ireland

Announcements

Use your Credit Card or Debit Card to pay your Clan Association Membership

Clan News

Online Access to Clan Newsletters has been Removed

Clan News

Revised Constitution approved at the Triennial General Meeting on 12 Jul 2014

Clan Videos

Genealogy Services

Eire Genealogy Services – Maria O’Brady

Éire Genealogy is an independent research agency which provides advice, assistance and commissioned research options, tailored to meet the specific needs of members of the Irish diaspora, worldwide ...

Genealogy Questions

Need help with questions about your O'Dea ancestors? You can submit your questions here ...

The O’Dea Castle

The authentically restored 15th century Dysert O’Dea castle, the stronghold of the O’Dea clan, houses the Clare Archaeology Centre which was opened in July 1986 and has been the recipient of numerous national awards ...