O'Connor first came to prominence as a hurler and Gaelic footballer with St Peter's College in Wexford. He played in every grade of hurling and Gaelic football before eventually joining the college's senior teams. On 27 January 2017, O'Connor scored a point from midfield when St. Peter's College defeated Moate Community School to win the Leinster Championship. He retained his position at midfield when St. Peter's College faced St. Brendan's College from Killarney in the All-Ireland final on 1 April 2017. O'Connor scored a point from play in the 0-18 to 0-10 defeat.
DCU Dóchas Éireann
As a student at Dublin City University, O'Connor immediately became involved in hurling and joined the college's freshers' hurling team in his first year. On 21 March 2018, he was selected at midfield but spent much of the game at left corner-forward when DublinCity University faced the University of Limerick in the freshers' final. O'Connor scored two points from play and ended the game with a winners' medal following the 1-20 to 2-15 victory.
St. Martin's
O'Connor joined the St. Martin's club at a young age and played in all grades at juvenile and underage levels as a dual player. He enjoyed much success in the minor, under-20 and under-21 grades and won eight championship medals across both codes between 2014 and 2018. On 18 October 2015, O'Connor lined out at right wing-forward when St. Martin's faced St. James' in the Wexford Football Championship final. He was substituted in the 55th minute and ended the game on the losing side following an 0-11 to 1-06 defeat. O'Connor lined out in his first Wexford Hurling Championship final on 22 October2017. He scored 0-05 from full-forward and ended the game with a winners' medal following the 2-16 to 1-09 defeat of Oulart-the Ballagh. On 29 October 2017, St Martin's had the chance to achieve the double when they faced Starlights in the Wexford Football Championship final. O'Connor scored a point from left wing-forward in the 0-17 to 1-08 defeat.
Wexford
Minor and under-21
O'Connor first lined out for Wexford as a member of the minor team during the 2015 Leinster Championship. He made his first appearance for the team on 25 April when he came on as a substitute for Damien Reck in a 1-18 to 1-17 defeat by Kilkenny. O'Connor was eligible for the minor grade again during the 2016 Leinster Championship. He lined out at left corner-forward in the Leinster final on 8 July 2016. O'Connor scored 0-05 in the 2-12 to 0-12 defeat by Dublin. He ended the championship as top scorer with 3-33. O'Connor was drafted onto the Wexford under-21 team in advance of the 2017 Leinster Championship. He made his first appearance in that grade on 31 May 2017 when he lined out at centre-forward in Wexford's 4-21 to 2-09 defeat of Offaly. On 5 July 2017, O'Connor scored two points from centre-forward when Wexford suffered a 0-30 to 1-15 defeat by Kilkenny in the Leinster final. O'Connor was eligible for the under-21 grade for a second and final season in 2018. He lined out in a second successive Leinster final on 4 July. O'Connor scored seven points from centre-forward in a 4-21 to 2-26 extra-time defeat by Galway. He ended the season by being named in the centre-forward position on the Team of the Year.
Senior
O'Connor was added to the Wexford senior team during the 2017 National League but was an unused substitute throughout the campaign. On 2 July 2017, he was an unused substitute when Wexford suffered a 0-29 to 1-17 defeat by Galway in the Leinster final. O'Connor made his first appearance for the Wexford senior team on 23 July 2017 when he lined out at midfield in a 1-23 to 1-19 All-Ireland quarter-final defeat by Waterford. Wexford reached a second Leinster final in three years on 30 June2019. O'Connor was selected at full-forward but spent much of the game at left wing-forward. He scored four points from play and collected a winners' medal following the 1-23 to 0-23 defeat of Kilkenny.
Career statistics
Honours
;St. Peter's College
Leinster Colleges Senior Football Championship : 2017
