Seán Ardagh (25 November 1947 – 17 May 2016) was an Irish Fianna Fáil politician who served as a Teachta Dála (TD) for the Dublin South-Central constituency from 1997 to 2011. A chartered accountant by profession, Ardagh obtained his qualification in Canada in the 1970s and returned to Ireland to practice. Ardagh was first elected to Dáil Éireann at the 1997 general election and retained his seat at the 2002 and 2007 general elections. Ardagh replaced Ben Briscoe as the TD and main candidate for Fianna Fáil in Dublin South-Central in 2002. He served as Chairman of a number of Dáil committees during his time as a TD.