Cathaoirleach of Seanad Eireann
26th Chair of the Senate of Ireland
Cathaoirleach Daly was first elected to the 23rd Seanad in 2007. In 2020, he was elected Chair of the Seanad Éireann (Senate of Ireland), and in 2025, he was re-elected unopposed as the 26th Cathaoirleach (Chair). He was the youngest member of his party to hold the position and the second-youngest person ever to serve as Chair of the Seanad. Mark is also one of only three individuals to have served in this role twice.
Since 2021, Mark has worked with Members of Congress and state legislators to establish and then expand the American Irish State Legislators Caucus, a bipartisan network of current and former legislators from across the United States at both state and local government levels. The Caucus is inclusive and open to all, welcoming both those with Irish heritage and supporters of Ireland.
Between 2017 and 2020, Mark published a series of six reports on Irish reunification, including the first-ever report by a Joint House and Senate Committee on Uniting Ireland. During his first term as Cathaoirleach, he chaired the Seanad’s Public Consultation Committee on the Constitutional Future of the Island of Ireland, facilitating vital discussions on Irish unification.
Following his first election to the Seanad, Mark was appointed to the Joint Committee on Foreign Affairs and has continued to engage with Ireland’s global diaspora. In 2013, he was appointed as the first-ever spokesperson for the Irish Overseas and the Diaspora, and he published the first report by any political party in Ireland on the subject.
Mark co-founded the Thomas F. Meagher Foundation with Reverend Michael Cavanagh of the Church of Ireland. Established in 2013, the Foundation aims to promote pride in and respect for the Irish flag and to enhance public understanding of its symbolism as a flag of peace. He also worked with the Taoiseach’s Department to update the official protocol for the Irish flag.
In 2016, Mark collaborated with the Minister for Disabilities to pass the Irish Sign Language Act, securing civil rights for the 50,000 members of Ireland’s Deaf community. This marked only the sixth time in the history of the Irish Constitution that a member of the opposition in the Seanad successfully passed legislation.



















































