Jason O'Reilly (born 23 August 1976) is an Irish Gaelic footballer who plays for the Belturbet club and was a member of the Cavan county team from 1996 to 2009.
Cavan claimed the Ulster title, and O'Reilly scored a goal in the All-Ireland semi-final win over Meath.
[9] Cavan reached the final of the National Football League in 2002, with Jason scoring 1-2 in the semi-final win over Roscommon.
[11] O'Reilly never retired from inter-county football, but his Cavan career came to an abrupt end in 2009, after he wasn't contacted by manager Tommy Carr.
[12] In 2012, O'Reilly was the manager of Lacken when they won the Cavan Intermediate Football Championship, defeating Cootehill after a replay.