Mark O'Mahony

Brighton & Hove Albion In January 2023, O'Mahony joined the academy of Brighton & Hove Albion for a reported fee of an initial £50,000, signing a three-year contract. On 12 November 2023, he was named among the match day squad in the Premier League as Brighton played at home against Sheffield United. On 10 April 2024, he signed a new contract with the club until June 2027. On 13 April 2024, he made his senior debut for the club, coming off the bench in their 1–1 draw away to Burnley in the Premier League.

On 28 April 2024, he made his first ever Premier League start vs Bournemouth, getting subbed off at half-time. On 27 August, he scored his first senior goal in a 4-0 win against Crawley Town in the EFL Cup 2nd round.

Portsmouth (loan) O'Mahony joined Portsmouth on 28 August 2024 on loan for the 2024–25 season.

Reading (loan) On 7 July 2025, O'Mahony joined EFL League One club Reading on a season-long loan.

International career He has been capped for Republic of Ireland at U-17, U-18 and U-19 levels, and was named the FAI's U-17 Player of the Year in 2022. In September 2022, he scored a hat trick for the Ireland U19 team against Gibraltar U19. In December 2022 he was named the FAI U17 player of the year after scoring fourteen goals in sixteen appearances for Irish youth international teams.

Career statistics

2026–27

2023–24 Premier League

2025–26 Premier League

3!!0!!0!!0!!1!!1!!0!!0!!4!!1 Portsmouth (loan) 2024–25 Championship

Reading (loan) 2025–26 League One

43!!3!!1!!1!!4!!1!!7!!2!!55!!7

Honours Club Cork City League of Ireland First Division (1): 2022

Individual FAI Under-17 International Player of the Year: 2021 FAI Under-19 International Player of the Year: 2023