Brendan O'Hagan (born 30 October 1998) is an Ireland international rugby league footballer who plays as a stand-off, scrum-half and hooker for The Entrance Tigers in the Central Coast League.

O'Hagan was born in Gosford, New South Wales, Australia.

[citation needed] O'Hagan played for the Mount Pritchard Mounties in the NSW Cup.

He joined York ahead of the 2021 season.

[4] In 2022 O'Hagan was named in the Ireland squad for the 2021 Rugby League World Cup,[5] making his debut, and scoring a try, against Jamaica on 16 October 2022.