Oisín Joyce (born 29 January 2005) is an Irish javelin thrower.

[1] In June 2024, he set a new Irish U20 record of 73.42 metres for the javelin throw at the Bauhaus Jürgen Gala in Germany.

[2] Competing at the 2024 World Athletics U20 Championships in the men's javelin throw he won bronze in Lima, Peru.

[4] He is from Ballinrobe in County Mayo and is a member of Lake District AC, a club his mother, Joyce, had helped start.

[5][6] He was also coached from the age of nine years-old by his father Pádraic, who has no throwing background, as well as Andreas Thorkildsen, Irish record holder Terry McHugh and British coach David Parker.