Joseph "Joe" Duffy (born 27 January 1956) is an Irish broadcaster employed by Raidió Teilifís Éireann (RTÉ). One of RTÉ's highest earning stars, he is the current presenter of Liveline, which is broadcast on RTÉ Radio 1, Monday - Fridays between 13:45 and 15:00. He has defended his high earnings on rival network TV3.He has a history as a student activist. As President of the Union of Students in Ireland (U.S.I.) he was once jailed for an occupation in which he participated.