Cathal O'Sullivan (born 5 March 2007) is an Irish professional footballer who plays as a winger or attacking midfielder for League of Ireland Premier Division club Cork City.
Cork man O'Sullivan attended Glanmire Community College[2] and began playing his schoolboy football with local club Leeside United, before joining the academy of Cork City in 2020, progressing up through their under-14, under-15, under-17 and under-19 teams over the following years.
[11][12] In September 2024, he drew praise from manager Tim Clancy for being "technically streets ahead of any other young lad in the country.
[17] O'Sullivan made his first appearance in international football on 21 September 2021, captaining the Republic of Ireland U15 side in a 2–0 win over Montenegro U15, in which he scored the first goal and assisted the second.
[18] He made his Republic of Ireland U17 debut on 9 September 2023, replacing Aarón Ochoa Moloney from the bench in the 71st minute of a 0–0 draw with Belgium U17.