Joseph Duffy may refer to:

Joseph "Joe" Duffy (born 27 January 1956, Mountjoy Square, Dublin) is an Irish broadcaster employed by Raidió Teilifís Éireann (RTÉ). A Jacob's Award winner, he is the current presenter of Liveline, which is broadcast on RTÉ Radio 1, Monday - Fridays between 13:45 and 15:00.

Duffy has a history as a student activist; he was President of the Union of Students in Ireland (U.S.I.) and was once jailed for an occupation in which he participated. In 2008, he appeared on the RTÉ television series Who Do You Think You Are?, where his family history in the British Army in India was revealed. In 2010, Joe Duffy began hosting a new show on RTÉ One called Joe Duffy's Spirit Level. The show discussed the different religions in the country and the faith of the people in Ireland.

Duffy was named 11th most influential person of 2009 by Village. His autobiography Just Joe was launched by Gay Byrne in Harry's Bar in October 2011. He is married with triplets and resides in Clontarf, Dublin.

Duffy was born in Mountjoy Square, Dublin, and brought up in Ballyfermot. He had four siblings, his father was Jimmy and his mother Mabel, Jimmy died aged 58 in 1984, and had problems with alcohol, Duffy described Jimmy as "a small man, nimble on his feet . . . with a rugged round face, button nose and prominent teeth". Joe's brother Aidan was killed in a road accident on the Maynooth Road in 1991 aged 25, with Joe first learning of the "horrific accident" on the news on RTÉ Radio. Joe's brother Brendan was described by him as "crippled, ruined and wrecked by a savage addiction" to sniffing glue which he developed as a teenager.

Tibor Nagy is a Hungarian sprint canoer who competed in the early to mid 1970s. He won a gold medal in the K-4 10000 m at the 1973 ICF Canoe Sprint World Championships in Tampere.