Early and personal life[edit]

Born in Drumcondra, Dublin, he was educated at the Christian Brothers O'Connell School, Dublin, University College Dublin and the College of Commerce, Rathmines. He worked as an official with CIÉ before becoming a politician. Ahern is a brother of the former Taoiseach and Fianna Fáil leader, Bertie Ahern and younger brother of former Lord Mayor of Dublin Maurice Ahern.