Hugh O'Sullivan (born 24 February 1998) is an Irish rugby union player, currently playing for Newcastle Falcons.
O'Sullivan entered the Leinster Rugby academy ahead of the 2017–18 season.
[2] He made his senior debut at the start of the 2018–19 season, featuring off the bench against the Dragons.
[2] On 2 July 2021, O'Sullivan would leave Leinster to move to England to join London Irish in the Premiership Rugby from the 2021-22 season.
[4] On 23 May 2023, O'Sullivan left London Irish to join Premiership rivals Newcastle Falcons on a two-year deal from the 2023-24 season.