Declan Breathnach (born 3 June 1958) is an Irish Fianna Fáil politician who has been a Teachta Dála (TD) for the Louth constituency since the 2016 general election.A native of Knockbridge, Dundalk, he studied at the Christian Brothers School, Dundalk and has a Bachelor of Education from St Patrick's College, Dublin.
He worked as a primary school teacher for 35 years – first in St.
Brigid's School, Dunleer (12 years) and then as Principal of Walshestown National School (23 years).
Breathnach has actively farmed from an early age.
Breathnach has been a member of Fianna Fáil since his early teens.
He has served as a Cumann Secretary, member of the officer board of Louth Comhairle Dáil Ceantair (constituency council) and as the Louth constituency representative on the Fianna Fáil National Executive, a position held up until his election as a Louth County Councillor in 1991.
Since Breathnach's first election to Louth County Council in 1991, he successfully retained he seat for 25 years, across 5 elections.
He served as Joint Chairperson of the Memorandum of Association between Down Council and Louth Council from 2010–2015.
He has also been a member of the East Border Regions committee.
He has also served as the Chairperson of the Louth County Council Special Policy Group on Infrastructure, European and Cross-Border Matters.
Breathnach continued to serve as a Louth County Councillor until 2016.
He successfully contested the Louth constituency at 2016 general election, receiving 9,099 first preference votes (13.5%) and was elected on the sixth count.
He previously contested the Louth constituency at 2011 general election but was not elected.Breathnach is Fianna Fáil Spokesperson on North-South Bodies & Cross-Border Co-Operation and is also Vice-Chairman of the Oireachtas Joint Committee on the Implementation of the Good Friday Agreement.
He also serves as Vice-Chairperson of the British–Irish Parliamentary Assembly.