Former government minister and former Fianna Fáil deputy leader Éamon Ó Cuív will not stand in the next general election, he has announced.
Mr Ó Cuív has been a TD for Galway West since 1992.
He served as Minister for Community, Rural and Gaeltacht Affairs from 2002 to 2010 and Minister for Social Protection from 2010 to 2011.
He was Fianna Fáil deputy leader in 2011 and 2012.
In a statement, Mr Ó Cuív said: "After deep consideration, I have decided not to seek a nomination to stand in the next general election. In the meantime I will continue to work as usual.
"I would like to thank everybody who supports me in my work."
Fianna Fáil leader Micheál Martin said Mr Ó Cuív was an "outstanding parliamentarian and Minister".
"I worked with Éamon both in the Dáil and in cabinet, and subsequently in 2011 around the regeneration and revitalisation of the party. He is one of the most conscientious and dedicated politicians I've ever worked with.
"He had a long term commitment to peace and reconciliation on the island of Ireland and played an important role in the lead up to the Good Friday Agreement.
"In his capacity as Minister for the Gaeltacht and Rural Affairs, he was pioneering and innovative in terms of The Language Act and a new era of support for the Irish Language," Mr Martin said.
Eamon was an outstanding parliamentarian and Minister. He is extremely committed, hard working and diligent. He has been a tremendous public representative for the people of Galway West and Cornamona. pic.twitter.com/LLLXuXHDVG
— Micheál Martin (@MichealMartinTD) July 24, 2024
He added: "Éamon will be a huge loss to public life and I would like to pay tribute to his wife Áine and his children who gave him tremendous support throughout his career.''
Mr Ó Cuív is the grandson of former taoiseach and president of Ireland Éamon de Valera.
His uncle Vivion de Valera was a TD between 1945 and 1981.
Mr Ó Cuív's first cousin Síle de Valera also served as a TD for Fianna Fáil between 1977 and 2007.